Polychaete reproduction : progress in comparative reproductive biology : international symposium Helgoland April 1982 / edited by Albrecht Fischer and Hans-Dieter Pfannenstiel. (Fortschritte der Zoologie ; Bd. 29)
Polychaete reproduction : progress in comparative reproductive biology : international symposium Helgoland April 1982 / edited by Albrecht Fischer and Hans-Dieter Pfannenstiel.