APA (7th ed.) Citation

Hessel, P. (1970). Der Arbeitsschutz. Boorberg.

Chicago Style (17th ed.) Citation

Hessel, Philipp. Der Arbeitsschutz. Stuttgart [u.a.]: Boorberg, 1970.

MLA (9th ed.) Citation

Hessel, Philipp. Der Arbeitsschutz. Boorberg, 1970.

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