Gaya APA
Alligood, A., M., T., M., R. (2002).
NURSING THEORISTS AND THEIR WORK (sixth Edition).
USA:
Mosby Elsevier.
Gaya MLA
Alligood, Ann, Marriner, Tomey,, Martha, Raile.
"NURSING THEORISTS AND THEIR WORK".
sixth Edition
USA:
Mosby Elsevier,
2002.
Buku Inti.