Schering Symposium on Mechanisms Involved in Conception : Berlin, March 13 to 15, 1969 / Editor: Gerhard Raspe - Oxford : Pergamon Press, [1970] - 471 p. : ill. ; 21 cm. - Advances in the biosciences ; 4 . ISBN: PND 7.00 Subjects--Topical Terms: Fertilization (Biology)--CongressesConception--Congresses Dewey Class. No.: 574.082