Dyfyniad APA

Guilford, J. P., & Fruchter, B. (1978). Fundamental statistics in psychology and education (6th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Guilford, J. P., and Benjamin Fruchter. Fundamental Statistics in Psychology and Education. 6th ed. Tokyo: McGraw-Hill, 1978.

Dyfyniad MLA

Guilford, J. P., and Benjamin Fruchter. Fundamental Statistics in Psychology and Education. 6th ed. McGraw-Hill, 1978.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.