Παραπομπή APA

Marki,L, & Wiegandt,R. (1985). Radical theory. North-Holland.

Παραπομπή Chicago Style

Marki,L, και Wiegandt,R. Radical Theory. Amsterdam: North-Holland, 1985.

Παραπομπή MLA

Marki,L, και Wiegandt,R. Radical Theory. North-Holland, 1985.