Παραπομπή σε μορφή APA (7η εκδ.)

Unknown. Headshot of Dr. Joyce H. Corrington, Director of Research in Science at Xavier University of Louisiana.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Unknown. Headshot of Dr. Joyce H. Corrington, Director of Research in Science at Xavier University of Louisiana.

Παραπομπή σε μορφή MLA (8th εκδ.)

Unknown. Headshot of Dr. Joyce H. Corrington, Director of Research in Science at Xavier University of Louisiana.