(2018). Understanding human sexuality. Willford Press.
芝加哥风格引文Understanding Human Sexuality. New York: Willford Press, 2018.
MLA引文Understanding Human Sexuality. Willford Press, 2018.
警告：这些引文格式不一定是100％准确.
APA引文
(2018). Understanding human sexuality. Willford Press.
芝加哥风格引文Understanding Human Sexuality. New York: Willford Press, 2018.
MLA引文Understanding Human Sexuality. Willford Press, 2018.