APA

Erdman L. G., . (1954). The edge of time. New York: Dodd-Mead.

Chicago

Erdman Loula Grace, . 1954. The edge of time. New York: Dodd-Mead.

Harvard

Erdman L. G., . (1954). The edge of time. New York: Dodd-Mead.

MLA

Erdman Loula Grace, . The edge of time. New York: Dodd-Mead. 1954.