By Cracknell, H.L., Kaufmann, R. J., Nobis, G.
By Ellison, H.L.
By Mallalieu, H.L.
By Gray, H.L.
By Fletcher, H.L., Hickey, G.I., Winter, P.C.
By Vickers, K. M., etc., Tipler, M. J., Van Hiele, H.L., K. M. Vickers, M. J. Tipler, H.L. Van Hiele
By Mencken, H.L., Cooke, Alistair
By Bretton, H.L.
By Frederickson, H.L., Wilkins-Haug, Louise
By Dennis, H.L.
By CAPRON, H.L.
By Vickers, K. M., etc., Tipler, M. J., Van Hiele, H.L.
By Heys, H.L.
By K. M. Vickers, etc., M. J. Tipler, H.L. Van Hiele, Vickers, K. M., Tipler, M. J., Van Hiele, H.L.
By Vickers, K. M., Tipler, M. J., Van Hiele, H.L.
By Willander, Magnus, Hartnagel, H.L.
By Hutchins, W.J., Somers, H.L.
By Brooke, Michael Z., Remmers, H.L.
By Willard, Helen S., Spackman, Clare S., Hopkins, H.L., Smith, H.D.
By Kahle, Werner, etc., Leonhardt, Helmut, Platzer, Werner, Schnellbaecher, Lothar, Spitzer, G., Dayan, H.L., Dayan, A. D.