Gaya APA

PFEIFFER, W., BALLEW, A, C. (1988). Index for UA training technologies series books 1-7 . San Diego, California: University Associates.

Gaya MLA

PFEIFFER, William., BALLEW, Arlette, C.. "Index for UA training technologies series books 1-7". San Diego, California: University Associates, 1988. Buku.