Gaya APA

Bechtel, S. (1993). The Practical encyclopedia of sex and health : from aphrodisiacs and hormones to potency, stress, vasectomy and yeast infection . Emmaus, Pennsylvania: Rodale Press.

Gaya MLA

Bechtel, Stefan. "The Practical encyclopedia of sex and health : from aphrodisiacs and hormones to potency, stress, vasectomy and yeast infection". Emmaus, Pennsylvania: Rodale Press, 1993. Text.