Cita APA (7a ed.)

Gregorio, D. d. (1968). The definition of categories of films.

Cita Chicago Style (17a ed.)

Gregorio, Domenico de. The Definition of Categories of Films. Straßburg, 1968.

Cita MLA (8a ed.)

Gregorio, Domenico de. The Definition of Categories of Films. 1968.