Gaya APA
L.Whall, J, J, ,, A. (1989).
Conceptual models of nursing: analysis and application (2).
California:
Appleton & lange.
Gaya MLA
L.Whall, Joyce, J.Fitzpatrick, ,, Ann.
"Conceptual models of nursing: analysis and application".
2
California:
Appleton & lange,
1989.
Text.