APA

Buchanan N. S., Ellis H. S., . (1955). Approaches to economic development. New York: The Twentieth Century Fund.

Chicago

Buchanan Norman S, Ellis Howard S, . 1955. Approaches to economic development. New York: The Twentieth Century Fund.

Harvard

Buchanan N. S., Ellis H. S., . (1955). Approaches to economic development. New York: The Twentieth Century Fund.

MLA

Buchanan Norman S, Ellis Howard S, . Approaches to economic development. New York: The Twentieth Century Fund. 1955.