Wall, Derek
Routledge , 1994
Buku Teks
Iowa Iowa University 1938
Buku Teks
Wood, H.G.
London Oxford University Press 1957
Buku Teks
The Reader's adviser and bookman's manual : a guide to best in print in literature, bibgraphies, dictionaries, encyclopedias, bibles, classics, drama, poetry, fiction, science, philosophy, travel, history
R. R. Bowker, 1960
Buku Referensi
edited by Kenneth G. Elzinga
Harper & Row, 1972
Buku Teks