APA (7th ed.) Citation

Humphrey, M. (1969). The hostage seekers : a study of childless and adopting couples / by M. Humphrey: A study of childless and adopting couples. Longmans.

Chicago Style (17th ed.) Citation

Humphrey, M. The Hostage Seekers : A Study of Childless and Adopting Couples / by M. Humphrey: A Study of Childless and Adopting Couples. Longmans, 1969.

MLA (9th ed.) Citation

Humphrey, M. The Hostage Seekers : A Study of Childless and Adopting Couples / by M. Humphrey: A Study of Childless and Adopting Couples. Longmans, 1969.

Warning: These citations may not always be 100% accurate.