APA

Jeffrey R. W., Forster J. L., Baxter J. E., French S. A. & Kelder S. H. (19940623). An empirical evaluation of the effectiveness of tangible incentives in increasing participation and behavior change in a worksite health promotion program. : American journal of health promotion : AJHP.

Chicago

Jeffrey R W, Forster J L, Baxter J E, French S A and Kelder S H. 19940623. An empirical evaluation of the effectiveness of tangible incentives in increasing participation and behavior change in a worksite health promotion program. : American journal of health promotion : AJHP.

Harvard

Jeffrey R. W., Forster J. L., Baxter J. E., French S. A. and Kelder S. H. (19940623). An empirical evaluation of the effectiveness of tangible incentives in increasing participation and behavior change in a worksite health promotion program. : American journal of health promotion : AJHP.

MLA

Jeffrey R W, Forster J L, Baxter J E, French S A and Kelder S H. An empirical evaluation of the effectiveness of tangible incentives in increasing participation and behavior change in a worksite health promotion program. : American journal of health promotion : AJHP. 19940623.