Cita APA

Hammer, D. I., Finklea, J. F., Priester, L. E., Keil, J. E., Sandifer, S. H., & Bridbord, K. (1972). Polychlorinated Biphenyls Residues in the Plasma and Hair of Refuse Workers.

Citación estilo Chicago

Hammer, D. I., J. F. Finklea, L. E. Priester, J. E. Keil, S. H. Sandifer, y K. Bridbord. Polychlorinated Biphenyls Residues in the Plasma and Hair of Refuse Workers. 1972.

Cita MLA

Hammer, D. I., et al. Polychlorinated Biphenyls Residues in the Plasma and Hair of Refuse Workers. 1972.