APA (7th ed.) Citation

Roberts, C. G. D. (1906). The heart that knows. L. C. Page.

Chicago Style (17th ed.) Citation

Roberts, Charles G. D. The Heart That Knows. Boston: L. C. Page, 1906.

MLA (8th ed.) Citation

Roberts, Charles G. D. The Heart That Knows. L. C. Page, 1906.