Etkin, W., & Gilbert, L. I. (1968). Metamorphosis: A problem in developmental biology. Appleton-Century-Crofts.
Chicago Edition CitationEtkin, William, and Lawrence I. Gilbert. Metamorphosis: A Problem in Developmental Biology. New York: Appleton-Century-Crofts, 1968.
ציטוט MLAEtkin, William, and Lawrence I. Gilbert. Metamorphosis: A Problem in Developmental Biology. Appleton-Century-Crofts, 1968.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.