Dyfyniad APA
Guilford, J., & Fruchter, B. (1973). Fundamental statistics in psychology and education (5th ed.). New york.
Dyfyniad Arddull Chicago
Guilford, J.P, and Benjamin Fruchter. Fundamental Statistics in Psychology and Education. 5th ed. McGraw-Hill: New york, 1973.
Dyfyniad MLA
Guilford, J.P, and Benjamin Fruchter. Fundamental Statistics in Psychology and Education. 5th ed. New york, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.