Lua APA (7ú heag.)
Friesen, D. D., & Friesen, R. M. (1989). Counseling and marriage. Word Pub..
Lua i Stíl Chicago (17ú heag.)
Friesen, DeLoss David, agus Ruby M. Friesen. Counseling and Marriage. Dallas: Word Pub., 1989.
Lua MLA (9ú heag.)
Friesen, DeLoss David, agus Ruby M. Friesen. Counseling and Marriage. Word Pub., 1989.
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