APA (7th ed.) Citation

Wohlfarth, J. H., & Mahoney, J. J. (1921). Self-help English lessons.: First- book. World book company.

Chicago Style (17th ed.) Citation

Wohlfarth, Julia Helen, and John Joseph Mahoney. Self-help English Lessons.: First- Book. Yonkers-on-Hudson, N. Y.: World book company, 1921.

MLA (9th ed.) Citation

Wohlfarth, Julia Helen, and John Joseph Mahoney. Self-help English Lessons.: First- Book. World book company, 1921.