Cita APA (7a ed.)
Christopher, T., & Asher, M. (1997). The 20-minute gardener: The garden of your dreams without giving up your life, your job, or your sanity. Random House.
Cita Chicago Style (17a ed.)
Christopher, Thomas, y Marty Asher. The 20-minute Gardener: The Garden of Your Dreams Without Giving Up Your Life, Your Job, or Your Sanity. New York: Random House, 1997.
Cita MLA (9a ed.)
Christopher, Thomas, y Marty Asher. The 20-minute Gardener: The Garden of Your Dreams Without Giving Up Your Life, Your Job, or Your Sanity. Random House, 1997.
Precaución: Estas citas no son 100% exactas.