APA (7 ম সংস্করণ) উদ্ধৃতি

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.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

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.