Παραπομπή σε μορφή APA (7η εκδ.)

Γιωτόπουλος, Π. Α. (1984). Middle income classes and food crises: The "new" food - feed competition. Centre of Planning and Economic Research.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Γιωτόπουλος, Παναγιώτης Α. Middle Income Classes and Food Crises: The "New" Food - Feed Competition. Athens: Centre of Planning and Economic Research, 1984.

Παραπομπή σε μορφή MLA (8th εκδ.)

Γιωτόπουλος, Παναγιώτης Α. Middle Income Classes and Food Crises: The "New" Food - Feed Competition. Centre of Planning and Economic Research, 1984.