APA-čujuhus (7. p.)
Hargreaves, D., & Hargreaves, B. (1972). African trees. Hargreaves Co..
Chicago-čujuhus (17. p.)
Hargreaves, Dorothy, juo Bob Hargreaves. African Trees. Hawai: Hargreaves Co., 1972.
MLA-čujuhus (9. p.)
Hargreaves, Dorothy, juo Bob Hargreaves. African Trees. Hargreaves Co., 1972.
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