Sparks, R. M., & Shalita, R. A. (1971). Prostaglandin abstracts: A guide to the literature. IFI/Plenum.
Lua i Stíl Chicago (17ú heag.)Sparks, Richard M., agus Ronald A. Shalita. Prostaglandin Abstracts: A Guide to the Literature. New York: IFI/Plenum, 1971.
Lua MLA (9ú heag.)Sparks, Richard M., agus Ronald A. Shalita. Prostaglandin Abstracts: A Guide to the Literature. IFI/Plenum, 1971.
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