APA (7th ed.) Citation

American School Peace League. Year book of the American School Peace League. American School Peace League.

Chicago Style (17th ed.) Citation

American School Peace League. Year Book of the American School Peace League. [Boston]: American School Peace League.

MLA (8th ed.) Citation

American School Peace League. Year Book of the American School Peace League. American School Peace League.

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