APA

Hafez E. S. E., Evans T. N., . (1973). Human reproduction : conception and contraception. New York: Harper and Row Publishers.

Chicago

Hafez E S E, Evans T N, . 1973. Human reproduction : conception and contraception. New York: Harper and Row Publishers.

Harvard

Hafez E. S. E., Evans T. N., . (1973). Human reproduction : conception and contraception. New York: Harper and Row Publishers.

MLA

Hafez E S E, Evans T N, . Human reproduction : conception and contraception. New York: Harper and Row Publishers. 1973.