Whitney, Ellie, author
Wadsworth and Cengage Learning, 2013
Buku Teks
Wardlaw, Gordon M., 1912-1989, author
McGraw-Hill, 2004
Buku Teks
Fleck, Henrietta
Macmillan, 1966
Buku Teks
Bogert, L. Jean (Lotta Jean), 1888-1970, author
W.B. Saunders, 1973
Buku Teks
Wardlaw, Gordon M., 1912-1989, author
McGraw-Hill, 2012
Buku Teks