Citazione Stile APA (7a Edizione)

(1978). Man in his environment: Course of study; man himself (1. publ.). Ministry of Education, Sierra Leone.

Citazione stile Chigago Style (17a edizione)

Man in His Environment: Course of Study; Man Himself. 1. publ. [S.l.]: Ministry of Education, Sierra Leone, 1978.

Citatione MLA (9a ed.)

Man in His Environment: Course of Study; Man Himself. 1. publ. Ministry of Education, Sierra Leone, 1978.