Cita APA (7th ed.)

Laverty, F. T. (1977). The O.K. way to slim: Weight control through transactional analysis. Prentice-Hall of Canada.

Cita Chicago (17th ed.)

Laverty, Frank T. The O.K. Way to Slim: Weight Control Through Transactional Analysis. Scarborough, Ont: Prentice-Hall of Canada, 1977.

Cita MLA (9th ed.)

Laverty, Frank T. The O.K. Way to Slim: Weight Control Through Transactional Analysis. Prentice-Hall of Canada, 1977.