William Benton

The New Encyclopaedia Britannica MACROPAEDIA Knowledge in Depth Volume 19: Utilitarianism-Zwingli

By Encyclopaedia Britannica

webster's third new international dictionary vol I - III

By Encyclopaedia Britannica

Encyclopaedia Britannica World Atlas

By Unidentified Author

1970 BRITANNICA YEARBOOK OF SCIENCE AND THE FUTURE.

By Calhoun, David R (Associate Editor).

webster's third new international dictionary vol I - III

By Encyclopaedia Britannica