APA (7th ed.) Citation

Weil, T. E., & Erickson, E. E. (1973). Area handbook for Ecuador. For sale by the Supt. of Docs., U.S. Govt. Print. Off.].

Chicago Style (17th ed.) Citation

Weil, Thomas E., and Edwin E. Erickson. Area Handbook for Ecuador. [Washington: For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1973.

MLA (8th ed.) Citation

Weil, Thomas E., and Edwin E. Erickson. Area Handbook for Ecuador. For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1973.