PD, G., BH, S., & EL, S. (1990). Hind limbs of eocene basilosaurus: Evidence of feet in whales. Science (New York, N.Y.), 249(4965), 154. https://doi.org/10.1126/science.249.4965.154
Chicago Style (17th ed.) CitationPD, Gingerich, Smith BH, and Simons EL. "Hind Limbs of Eocene Basilosaurus: Evidence of Feet in Whales." Science (New York, N.Y.) 249, no. 4965 (1990): 154. https://doi.org/10.1126/science.249.4965.154.
MLA (9th ed.) CitationPD, Gingerich, et al. "Hind Limbs of Eocene Basilosaurus: Evidence of Feet in Whales." Science (New York, N.Y.), vol. 249, no. 4965, 1990, p. 154, https://doi.org/10.1126/science.249.4965.154.
Warning: These citations may not always be 100% accurate.