Fraenkel, J. R. (1973). Helping students think and value: Strategies for teaching the social studies. Prentice-Hall.
Dyfyniad Arddull ChicagoFraenkel, Jack R. Helping Students Think and Value: Strategies for Teaching the Social Studies. Englewood Cliffs. N. J: Prentice-Hall, 1973.
Dyfyniad MLAFraenkel, Jack R. Helping Students Think and Value: Strategies for Teaching the Social Studies. Prentice-Hall, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.