APA
Kaltofen R. S., . (1971). Embryonic development in the eggs of the Pekin Duck. Wageningen: Centre for Agricultural Publishing and Documentation.
Chicago
Kaltofen R S, . 1971. Embryonic development in the eggs of the Pekin Duck. Wageningen: Centre for Agricultural Publishing and Documentation.
Harvard
Kaltofen R. S., . (1971). Embryonic development in the eggs of the Pekin Duck. Wageningen: Centre for Agricultural Publishing and Documentation.
MLA
Kaltofen R S, . Embryonic development in the eggs of the Pekin Duck. Wageningen: Centre for Agricultural Publishing and Documentation. 1971.
TekstJęzyk: engger Szczegóły wydania: Wageningen : Centre for Agricultural Publishing and Documentation, 1971.Opis: 72 s. : il. ; 17 cm.ISBN: 
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