APA

Eckaus R. S., . (1977). Appropriate technologies for developing countries. Washington, D.C: Nat. Acad. of Sciences.

Chicago

Eckaus Richard S, . 1977. Appropriate technologies for developing countries. Washington, D.C: Nat. Acad. of Sciences.

Harvard

Eckaus R. S., . (1977). Appropriate technologies for developing countries. Washington, D.C: Nat. Acad. of Sciences.

MLA

Eckaus Richard S, . Appropriate technologies for developing countries. Washington, D.C: Nat. Acad. of Sciences. 1977.