Heinerman, J. (1997). Nature's super seven medicine: The seven essential ingredients for optimal health. Prentice Hall.
Chicago (17e ed.) BronvermeldingHeinerman, John. Nature's Super Seven Medicine: The Seven Essential Ingredients for Optimal Health. Englewoood Cliffs, NJ: Prentice Hall, 1997.
MLA (9e ed.) BronvermeldingHeinerman, John. Nature's Super Seven Medicine: The Seven Essential Ingredients for Optimal Health. Prentice Hall, 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.