Wade, C. (1993). Natural energy boosters. Parker Pub.
Cita Chicago (17th ed.)Wade, Carlson. Natural Energy Boosters. West Nyack, NY: Parker Pub, 1993.
Cita MLA (9th ed.)Wade, Carlson. Natural Energy Boosters. Parker Pub, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.