Lauridsen, E.B. Identification, establishment and management of seed sources / E. B. Lauridsen & Kirsten Olesen. - Copenhagen : Danida Forest Seed Centre, 1994. - 20 p. : ill. ; 30 cm. - Lecture note ; B-2 . Includes bibliographical references. Subjects--Topical Terms: Seed industry and trade. Dewey Class. No.: 631.5