Gaya APA
Montgomery, D, C. (1993).
Pengantar Pengendalian Kualitas Statistik (Cet. II).
Gorontalo:
Gadjah Mada University Press.
Gaya MLA
Montgomery, Douglas, C..
"Pengantar Pengendalian Kualitas Statistik".
Cet. II
Gorontalo:
Gadjah Mada University Press,
1993.
Text.