Cita APA

Portugal, p. J. P., & Barnard, d. E. (2009). Zen energy. J.P.P.

Chicago Style (17th ed.) Citation

Portugal, propr. Joeli Publishing, i dir. Elisabeth Barnard. Zen Energy. J.P.P, 2009.

Cita MLA

Portugal, propr. Joeli Publishing, i dir. Elisabeth Barnard. Zen Energy. J.P.P, 2009.