Gaya APA
Insel, P, M., Roth, W, T.
(1985).
Core Concepts in Health.
(
4 th. ed.)
.
Palo Alto:
Mayfield Publishing.
Gaya MLA
Insel, Paul, M.., Roth, Walton, T..
"Core Concepts in Health.".
4 th. ed.
Palo Alto:
Mayfield Publishing,
1985.
print.