APA (7th ed.) Citation

Sobel, R. (1971). Biographical directory of the United States executive branch, 1774-1971. Greenwood Pub. Co.

Chicago Style (17th ed.) Citation

Sobel, Robert. Biographical Directory of the United States Executive Branch, 1774-1971. Westport, Conn.: Greenwood Pub. Co, 1971.

MLA (9th ed.) Citation

Sobel, Robert. Biographical Directory of the United States Executive Branch, 1774-1971. Greenwood Pub. Co, 1971.

Warning: These citations may not always be 100% accurate.