Gaya APA
M.Wills, M, M, E.
(2011).
Theoretical Basis For Nursing
.
Amerika:
Lippincott & Walkins.
Gaya MLA
M.Wills, Melanie, McEwen,, Evelyn.
"Theoretical Basis For Nursing".
Amerika:
Lippincott & Walkins,
2011.
Buku Teks.