APA (7th ed.) Citation

Potthoff, H. H. (1977). Understanding loneliness. Harper & Row.

Chicago Style (17th ed.) Citation

Potthoff, Harvey H. Understanding Loneliness. New York u.a: Harper & Row, 1977.

MLA (9th ed.) Citation

Potthoff, Harvey H. Understanding Loneliness. Harper & Row, 1977.