University of Pennsylvania. Botanical Laboratory. (1892). Contributions from the Botanical Laboratory. University of Pennsylvania Press.
Chicago Style (17th ed.) CitationUniversity of Pennsylvania. Botanical Laboratory. Contributions from the Botanical Laboratory. Philadelphia: University of Pennsylvania Press, 1892.
MLA引文University of Pennsylvania. Botanical Laboratory. Contributions from the Botanical Laboratory. University of Pennsylvania Press, 1892.
警告:這些引文格式不一定是100%准確.