APA-ийн эшлэл(7 дахь хэвлэлт)

THARP, R. G., & WETZEL, R. J. (1969). Behavior modification in the natural environment. Academic Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

THARP, Roland G., ба Ralph J. WETZEL. Behavior Modification in the Natural Environment. New York: Academic Press, 1969.

MLA -ийн эшлэл (9 дэх хэвлэлт)

THARP, Roland G., ба Ralph J. WETZEL. Behavior Modification in the Natural Environment. Academic Press, 1969.