APA (7th ed.) Citation

(2000). Periodicals index online: PIO. Chadwyck-Healey.

Chicago Style (17th ed.) Citation

Periodicals Index Online: PIO. Alexandria, Va: Chadwyck-Healey, 2000.

MLA (8th ed.) Citation

Periodicals Index Online: PIO. Chadwyck-Healey, 2000.

Warning: These citations may not always be 100% accurate.