APA-viite (7. p.)

Grasskamp, W. (1997). Philosophical Platform. Bert Theis : some works.

Chicago-viite (17. p.)

Grasskamp, Walter. "Philosophical Platform." Bert Theis : Some Works 1997.

MLA-viite (8. p.)

Grasskamp, Walter. "Philosophical Platform." Bert Theis : Some Works, 1997.