Gerhardt, K. (1994). Seedling development of four tree species in secondary tropical dry forest in Guanacaste, Costa Rica. Acta Universitatis Upsaliensis ; Distributor, Almqvist & Wiksell International.
Chicagoスタイル(17版)引用形式Gerhardt, Karin. Seedling Development of Four Tree Species in Secondary Tropical Dry Forest in Guanacaste, Costa Rica. Uppsala : Stockholm: Acta Universitatis Upsaliensis ; Distributor, Almqvist & Wiksell International, 1994.
MLA(8版)引用形式Gerhardt, Karin. Seedling Development of Four Tree Species in Secondary Tropical Dry Forest in Guanacaste, Costa Rica. Acta Universitatis Upsaliensis ; Distributor, Almqvist & Wiksell International, 1994.
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