Yiesla, S. A., & Giles, F. A. (1992). Shade trees for the central and northern United States and Canada. Stipes Publ. Co..
Cita Chicago Style (17a ed.)Yiesla, Sharon A., y Floyd A. Giles. Shade Trees for the Central and Northern United States and Canada. Champaign, Illinois: Stipes Publ. Co., 1992.
Cita MLA (9a ed.)Yiesla, Sharon A., y Floyd A. Giles. Shade Trees for the Central and Northern United States and Canada. Stipes Publ. Co., 1992.
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