Cita APA (7th ed.)

Landis, J. T., & Landis, M. G. (1973). Building a successful marriage (6th ed.). Prentice-Hall.

Cita Chicago (17th ed.)

Landis, Judson T., i Mary G. Landis. Building a Successful Marriage. 6th ed. Englewood Cliffs, N.J: Prentice-Hall, 1973.

Cita MLA (9th ed.)

Landis, Judson T., i Mary G. Landis. Building a Successful Marriage. 6th ed. Prentice-Hall, 1973.