International orang utan studbook
Subtitle: as of December 31, 1969.
Contributors: Bourne, Geoffrey H. 1909-; Roberts, Lillian G.; Barnes, Mary E.
Publisher: Yerkes Regional Primate Research Center
Published: 1971
Place of publication: [Atlanta, Georgia
Language: eng
Number of pages: 70
Subjects: Apes; Pongo pygmaeus
Other titles: Orang utan studbook
Notes: Studbook-keeper: Geoffrey H. Bourne. Compiled by Lillian G. Roberts, Mary E. Barnes.