APA (7th ed.) Citation

Richter, H. P., & Kroll, E. (1973). I was there. Longman Young.

Chicago Style (17th ed.) Citation

Richter, Hans Peter, and Edite Kroll. I Was There. Harmondsworth: Longman Young, 1973.

MLA (8th ed.) Citation

Richter, Hans Peter, and Edite Kroll. I Was There. Longman Young, 1973.