APA (7th ed.) Citation

Penkovsky. (1965). The penkovsky papers. Wheatshe of Books.

Chicago Style (17th ed.) Citation

Penkovsky. The Penkovsky Papers. Sussex: Wheatshe of Books, 1965.

MLA (8th ed.) Citation

Penkovsky. The Penkovsky Papers. Wheatshe of Books, 1965.

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