The  Arnold Arboretum manual of gymnosperm propagation
By: Alfred Fordham, Leslie Spraker.
Contributors: Spraker, Leslie.
Publisher: s.n.]
Place of publication: [S.l
Number of pages: 124
Subjects: Plant propagation -- Handbooks, manuals, etc.
Notes: Photocopy of typescript.

Originally presented as Leslie Spraker's thesis (M.S.)--University of Delaware.

Includes bibliographies.