THARP, R. G., & WETZEL, R. J. (1969). Behavior modification in the natural environment. Academic Press.
芝加哥风格引文THARP, Roland G., 与 Ralph J. WETZEL. Behavior Modification in the Natural Environment. New York: Academic Press, 1969.
MLA引文THARP, Roland G., 与 Ralph J. WETZEL. Behavior Modification in the Natural Environment. Academic Press, 1969.
警告：这些引文格式不一定是100％准确.