APA-Zitierstil (7. Ausg.)

Laak, R. (1986). Wastewater engineering design for unsewered areas (2. ed.). Technomic.

Chicago-Zitierstil (17. Ausg.)

Laak, Rein. Wastewater Engineering Design for Unsewered Areas. 2. ed. Lancaster u.a: Technomic, 1986.

MLA-Zitierstil (9. Ausg.)

Laak, Rein. Wastewater Engineering Design for Unsewered Areas. 2. ed. Technomic, 1986.