APA

Lehman J., . (1976). The executive, congress, and foreign policy. Studies of the Nixon administration. Estados Unidos de América: EDERSA.

Chicago

Lehman John, . 1976. The executive, congress, and foreign policy. Studies of the Nixon administration. Estados Unidos de América: EDERSA.

Harvard

Lehman J., . (1976). The executive, congress, and foreign policy. Studies of the Nixon administration. Estados Unidos de América: EDERSA.

MLA

Lehman John, . The executive, congress, and foreign policy. Studies of the Nixon administration. Estados Unidos de América: EDERSA. 1976.