APA
Henry N. Harkins, . (1977). Surgery Principles and Practice. New York: pergamon press.
Chicago
Henry N. Harkins, . 1977. Surgery Principles and Practice. New York: pergamon press.
Harvard
Henry N. Harkins, . (1977). Surgery Principles and Practice. New York: pergamon press.
MLA
Henry N. Harkins, . Surgery Principles and Practice. New York: pergamon press. 1977.