APA

Hill N., . (1968). Grow rich with peace of mind. New York: Hawthorn Books.

Chicago

Hill Napoleon, . 1968. Grow rich with peace of mind. New York: Hawthorn Books.

Harvard

Hill N., . (1968). Grow rich with peace of mind. New York: Hawthorn Books.

MLA

Hill Napoleon, . Grow rich with peace of mind. New York: Hawthorn Books. 1968.