MLA

Robertson, William Egbert, and Harold Frederick Robertson. Diagnostic Signs, Reflexes and Syndromes. 3d ed. Philadelphia: F.A. Davis, 1947.

APA

Robertson, W. Egbert, & Robertson, H. Frederick. (1947). Diagnostic signs, reflexes and syndromes. 3d ed. Philadelphia: F.A. Davis.

Chicago

Robertson, William Egbert, and Harold Frederick Robertson. Diagnostic Signs, Reflexes and Syndromes. 3d ed. Philadelphia: F.A. Davis, 1947.