APA (7th ed.) Citation

Trotsky, L., & Shachtman, M. The new course. New international publishers (New York).

Chicago Style (17th ed.) Citation

Trotsky, Léon, and Max Shachtman. The New Course. New international publishers (New York).

MLA (8th ed.) Citation

Trotsky, Léon, and Max Shachtman. The New Course. New international publishers (New York).

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