Gaya APA
Halloran, J., Frunzi, G, L.
(1986).
Supervision
.
Englewood Cliffs:
Prentice Hall.
Gaya MLA
Halloran, Jack., Frunzi, George, L..
"Supervision".
Englewood Cliffs:
Prentice Hall,
1986.
Buku/Printed Material.