Bullough, W. S., & Bullough, W. S. (1963). Vertebrate reproductive cycles (2. edition.). New York, New York: Willey.
Chicago Style CitationBullough, William Sydney, and William Sydney Bullough. Vertebrate Reproductive Cycles. 2. edition. New York, New York: Willey, 1963.
MLA CitationBullough, William Sydney, and William Sydney Bullough. Vertebrate Reproductive Cycles. 2. edition. New York, New York: Willey, 1963.
Warning: These citations may not always be 100% accurate.