APA (7th ed.) Citation

Sylvanus, E. (1959). Emil Schumacher. Aurel Bongers.

Chicago Style (17th ed.) Citation

Sylvanus, Erwin. Emil Schumacher. Recklinghausen: Aurel Bongers, 1959.

MLA (8th ed.) Citation

Sylvanus, Erwin. Emil Schumacher. Aurel Bongers, 1959.

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