APA (7th ed.) Citation

HELLER, S. (1938). ?tudes Progressives - VIII. Schott Freres.

Chicago Style (17th ed.) Citation

HELLER, Stephen. ?tudes Progressives - VIII. Schott Freres, 1938.

MLA (8th ed.) Citation

HELLER, Stephen. ?tudes Progressives - VIII. Schott Freres, 1938.

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