edited by C.A. Jacobson
Reinhold Pub. Corp., 1959
Buku Referensi
edited by S. Flugge
Springer-Verlag, 1959
Buku Referensi
Gordon M. Barrow ... [et.al.]
W.A. Benjamin, 1967
Buku Teks
edited by William Bridgwater dan Seymour Kurtz
Columbia University Press, 1963
Buku Referensi
editor in chief, Seymour Martin Lipset
Routledge, 1995
Buku Referensi