Schrock, D. (2008). All about citrus & subtropical fruits ([2nd ed.].). Meredith Books.
Cita Chicago (17th ed.)Schrock, Denny. All About Citrus & Subtropical Fruits. [2nd ed.]. Des Moines, Iowa: Meredith Books, 2008.
Cita MLA (9th ed.)Schrock, Denny. All About Citrus & Subtropical Fruits. [2nd ed.]. Meredith Books, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.