Collier's encyclopedia : volume 8
Macmillan Educational Company, 1990
Buku Referensi
Collier's encyclopedia, with bibliography and index : volume 1
P.F. Collier & Son, 1954
Buku Referensi
Collier's encyclopedia, with bibliography and index : volume 4
P.F. Collier & Son, 1954
Buku Referensi
Collier's encyclopedia, with bibliography and index : volume 7
P.F. Collier & Son, 1954
Buku Referensi
Collier's encyclopedia, with bibliography and index : volume 9
P.F. Collier & Son, 1954
Buku Referensi