Παραπομπή APA

Sayers, D. L. (1969). Clouds of witness. Victor Collanez.

Παραπομπή Chicago Style

Sayers, Dorothy L. Clouds of Witness. Victor Collanez, 1969.

Παραπομπή MLA

Sayers, Dorothy L. Clouds of Witness. Victor Collanez, 1969.