Gaya APA

Guilford, J. (1954). Psychometric methods / J.P. Guilford (Cet.1). : Mc. Graw Hill Book.

Gaya MLA

Guilford, J.P.. "Psychometric methods / J.P. Guilford". Cet.1 : Mc. Graw Hill Book, 1954. Referensi.