Cita APA (7a ed.)
Barker, J. A., Christensen, R. J., & Christensen, J. R. Pioneros de paradigmas. Charthouse Learning Corporation.
Cita estilo Chicago (17a ed.)
Barker, Joel Arthur, Ray J. Christensen, y John R. Christensen. Pioneros De Paradigmas. Minneápolis, EUA: Charthouse Learning Corporation.
Cita MLA (9a ed.)
Barker, Joel Arthur, et al. Pioneros De Paradigmas. Charthouse Learning Corporation.
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