APA

Bishop C. A., Ng P., Norstrom R. J., Brooks R. J. & Pettit K. E. (19970613). Temporal and geographic variation of organochlorine residues in eggs of the common snapping turtle (Chelydra serpentina serpentina) (1981-1991) and comparisons to trends in the herring gull (Larus argentatus) in the Great Lakes basin in Ontario, Canada. : Archives of environmental contamination and toxicology.

Chicago

Bishop C A, Ng P, Norstrom R J, Brooks R J and Pettit K E. 19970613. Temporal and geographic variation of organochlorine residues in eggs of the common snapping turtle (Chelydra serpentina serpentina) (1981-1991) and comparisons to trends in the herring gull (Larus argentatus) in the Great Lakes basin in Ontario, Canada. : Archives of environmental contamination and toxicology.

Harvard

Bishop C. A., Ng P., Norstrom R. J., Brooks R. J. and Pettit K. E. (19970613). Temporal and geographic variation of organochlorine residues in eggs of the common snapping turtle (Chelydra serpentina serpentina) (1981-1991) and comparisons to trends in the herring gull (Larus argentatus) in the Great Lakes basin in Ontario, Canada. : Archives of environmental contamination and toxicology.

MLA

Bishop C A, Ng P, Norstrom R J, Brooks R J and Pettit K E. Temporal and geographic variation of organochlorine residues in eggs of the common snapping turtle (Chelydra serpentina serpentina) (1981-1991) and comparisons to trends in the herring gull (Larus argentatus) in the Great Lakes basin in Ontario, Canada. : Archives of environmental contamination and toxicology. 19970613.