Modell, Walter, editor
The C. V. Mosby Company, 1972
Buku Referensi
Publishing Science Group, Inc., 1973
Buku Teks
edited by Hary Beckman
Year Book Publishers, 1951
Buku Teks
Bergersen, Betty S., author
Mosby, 1969
Buku Teks
Bergersen, Betty S., author
Mosby, 1966
Buku Teks