Society for Developmental Biology Symposium & Spradling, A. C. (1993). Evolutionary conservation of developmental mechanisms: 50th Symposium of the Society for Developmental Biology, Marquette University, June 20-23, 1991. Wiley-Liss.
Παραπομπή σε μορφή Chicago (17η εκδ.)Society for Developmental Biology Symposium και Allan C. Spradling. Evolutionary Conservation of Developmental Mechanisms: 50th Symposium of the Society for Developmental Biology, Marquette University, June 20-23, 1991. New York, NY: Wiley-Liss, 1993.
Παραπομπή σε μορφή MLA (8th εκδ.)Society for Developmental Biology Symposium και Allan C. Spradling. Evolutionary Conservation of Developmental Mechanisms: 50th Symposium of the Society for Developmental Biology, Marquette University, June 20-23, 1991. Wiley-Liss, 1993.
