APA (7 वां संस्करण) प्रशस्ति पत्र
Grossnickle, S. C. (2000). Ecophysiology of northern spruce species: The performance of planted seedlings. NRC Research Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Grossnickle, Steven C. Ecophysiology of Northern Spruce Species: The Performance of Planted Seedlings. Ottawa: NRC Research Press, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Grossnickle, Steven C. Ecophysiology of Northern Spruce Species: The Performance of Planted Seedlings. NRC Research Press, 2000.
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