Folkenberg, R. (2002). Health for the harvest. North American Division Evangelism Institute.
Cita Chicago (17th ed.)Folkenberg, Robert. Health for the Harvest. Berrien Springs, MI: North American Division Evangelism Institute, 2002.
Cita MLA (9th ed.)Folkenberg, Robert. Health for the Harvest. North American Division Evangelism Institute, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.