Vollmer, E. (1967). Encyclopaedia of hydraulics, soil and foundation engineering. London: Elsevier Publishing Company.
Chicago ZitierstilVollmer, Ernst. Encyclopaedia of Hydraulics, Soil and Foundation Engineering. London: Elsevier Publishing Company, 1967.
MLA ZitierstilVollmer, Ernst. Encyclopaedia of Hydraulics, Soil and Foundation Engineering. London: Elsevier Publishing Company, 1967.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.