Cita APA (7th ed.)

Helvie, C. O. (1981). Community health nursing: Theory and Process. Harper & Row.

Cita Chicago (17th ed.)

Helvie, Carl O. Community Health Nursing: Theory and Process. Philadelphia: Harper & Row, 1981.

Cita MLA (9th ed.)

Helvie, Carl O. Community Health Nursing: Theory and Process. Harper & Row, 1981.