Betz, W. Basic mathematics: A self-teaching course ; based on Basic mathematics. Washington, DC.
Chicago ZitierstilBetz, William. Basic Mathematics: A Self-teaching Course ; Based On Basic Mathematics. Washington, DC.
MLA ZitierstilBetz, William. Basic Mathematics: A Self-teaching Course ; Based On Basic Mathematics. Washington, DC.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.