Gaya APA
GUILFORD, J., FRUCHTER, B. (1981).
Fundamental Statistics in Psychology and education (Ed. 6).
Singapore:
McGraw-Hill International Editions.
Gaya MLA
GUILFORD, J.P., FRUCHTER, Benjamin.
"Fundamental Statistics in Psychology and education".
Ed. 6
Singapore:
McGraw-Hill International Editions,
1981.
Text.