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.
ציטוט MLAUniversity of Pennsylvania. Botanical Laboratory. Contributions from the Botanical Laboratory. University of Pennsylvania Press, 1892.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.