Cita APA (7th ed.)

Vogel, D., & Ledanff, G. (1978). The professional teacher preparation program of the college of education of the University of Houston: A case study. Institut fur Didaktik der Mathematik der Universitat Bielefeld.

Cita Chicago (17th ed.)

Vogel, Dankwart, i G. Ledanff. The Professional Teacher Preparation Program of the College of Education of the University of Houston: A Case Study. Bielefeld, Germany: Institut fur Didaktik der Mathematik der Universitat Bielefeld, 1978.

Cita MLA (8th ed.)

Vogel, Dankwart, i G. Ledanff. The Professional Teacher Preparation Program of the College of Education of the University of Houston: A Case Study. Institut fur Didaktik der Mathematik der Universitat Bielefeld, 1978.