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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGerhardt, 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.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGerhardt, Karin. Seedling Development of Four Tree Species in Secondary Tropical Dry Forest in Guanacaste, Costa Rica. Acta Universitatis Upsaliensis ; Distributor, Almqvist & Wiksell International, 1994.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.