United States Department of Agriculture & National Agricultural Statistics Service. (1996). Agricultural Chemical Usage. 1995 Fruits Summary.
Cita Chicago (17th ed.)United States Department of Agriculture i National Agricultural Statistics Service. Agricultural Chemical Usage. 1995 Fruits Summary. 1996.
Cita MLA (9th ed.)United States Department of Agriculture i National Agricultural Statistics Service. Agricultural Chemical Usage. 1995 Fruits Summary. 1996.
Atenció: Aquestes cites poden no estar 100% correctes.