APA (7th ed.) Citation

Graumann, H. M. (1983). History and principles of graphology. [s.n.].

Chicago Style (17th ed.) Citation

Graumann, Heinz M. History and Principles of Graphology. [S.l.]: [s.n.], 1983.

MLA (9th ed.) Citation

Graumann, Heinz M. History and Principles of Graphology. [s.n.], 1983.