Penguin

The International Thesaurus of Quotations (Penguin reference)

By Tripp, Rhoda Thomas

The Penguin Dictionary of Physics

By Pitt, Valerie

The New Penguin Dictionary of Electronics (Penguin reference books)

By Young, E., Pitt, Valerie

The Penguin Dictionary of Psychology (Penguin Reference)

By Reber, Arthur, Arthur Reber

The Penguin Atlas of African History

By Colin McEvedy

The Penguin Dictionary of Twentieth Century History (Reference Books)

By Palmer, Alan

Penguin Dictionary of Design And Designers (Penguin reference books)

By Jervis, Simon

The Penguin Dictionary of Physical Geography (Penguin Reference Books)

By Whittow, John

The Penguin Dictionary of Human Geography (Penguin Reference)

By Goodall, Brian, Goodall, Brian, King, Kathleen

The Penguin Concise Dictionary of Biographical Quotation

By Wintle, Justin, Kenin, Richard

The Penguin Dictionary of Religions (Penguin reference)

By John Hinnells, Regnld Piggott, Hinnells, John, Piggott, Regnld

The Penguin Dictionary of Biology

A Dictionary of Literary Terms (Revised) (Reference Books)

By Cuddon, J. A.

The Penguin Dictionary of Chemistry (Penguin Reference Books)

By Sharp, David William Arthur, D. W.

The Penguin Dictionary of Archaeology (Reference Books)

By Trump, David, Bray, Warwick

Dictionary of Proverbs, The Penguin (Reference)

By Fergusson, Rosalind

The Penguin Dictionary of Saints (Penguin reference)

By Attwater, Donald

Roget's Thesaurus of English Words And Phrases (Penguin Reference Books)

By Lloyd, Susan

The Penguin Dictionary of Modern History, 1789-1945 (Reference Books)

By Palmer, A. W., Alan

The Penguin Dictionary of Botany

By Tootill, Elizabeth, Blackmore, Stephen

The Penguin Dictionary of Troublesome Words (Penguin reference books)

By Bryson, Bill

The Penguin Dictionary of Art And Artists (Reference Books)

By Murray, Linda, Murray, Peter

The Penguin Dictionary of Economics

By Unknown

The Penguin Reference Dictionary (Penguin reference books)

By No Known Author

The Penguin English Dictionary 1985-86

By Penguin Books

The Penguin Atlas of Ancient History (Reference Books)

By McEvedy, Colin, Woodcock, John

Penguin Atlas of Modern History to 1815

By McEvedy, Colin

The Penguin Dictionary of Science (Reference Books)

By Isaacs, Alan, Uvarov, E.

The Penguin Dictionary of Music (Reference Books)

By Jacobs, Arthur

The Penguin Wordmaster Dictionary (Penguin reference books)

By Manser, Martin H., Turton, Nigel D.