Citazione APA

Murray, M. T., & Pizzorno, J. E. (1998). Encyclopaedia of natural medicine (2nd.). Little, Brown and Company.

Stile di citazione Chicago

Murray, Michael T., e Joseph E. Pizzorno. Encyclopaedia of Natural Medicine. 2nd. London: Little, Brown and Company, 1998.

Citazione MLA

Murray, Michael T., e Joseph E. Pizzorno. Encyclopaedia of Natural Medicine. 2nd. Little, Brown and Company, 1998.