Franklin

MLA

Blum, Ferdinand Hechinger. Duty Test On The Pumping Station of the Pennypack Creek Sewage Disposal Plant, Holmesburg Jct., Philadelphia, Pa. [Philadelphia], 1913.

APA

Blum, F. Hechinger. (1913). Duty test on The Pumping station of the Pennypack Creek sewage disposal plant, Holmesburg jct., Philadelphia, Pa. [Philadelphia].

Chicago

Blum, Ferdinand Hechinger. Duty Test On The Pumping Station of the Pennypack Creek Sewage Disposal Plant, Holmesburg Jct., Philadelphia, Pa.. [Philadelphia], 1913.