Cita APA (7a ed.)

Carter, G., Jr, & Clark, R. C. (1961). Selected readings and references in 4-h club work. National agricultural extension center for advanced study.

Cita Chicago Style (17a ed.)

Carter, G.L, Jr, y Robert C. Clark. Selected Readings and References in 4-h Club Work. Madison: National agricultural extension center for advanced study, 1961.

Cita MLA (8a ed.)

Carter, G.L, Jr, y Robert C. Clark. Selected Readings and References in 4-h Club Work. National agricultural extension center for advanced study, 1961.