Cooper B A Ed. Proceeding on pteridines and folic acid derivative,chemistry and biology of pteridines Cooper B A Ed.; Whitehead V M Ed. - Berlin Walter de Gruhter 1986 - 1050p. cm. - Chemistry and biology of pteridenes . Standard No.: 55565 Source: Textual Subjects--Topical Terms: ObstetricsMedicine Dewey Class. No.: L:33E97p1,N86, M6