APA (7 वां संस्करण) प्रशस्ति पत्र

Blyth, J. E., & Weatherspoon, A. K. :. S. (1992). Michigan timber industry an assessment of timber product output and use. U.S. Department of agriculture.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Blyth, James E., और Anthony K : Smith Weatherspoon. Michigan Timber Industry an Assessment of Timber Product Output and Use. Minnestoa: U.S. Department of agriculture, 1992.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Blyth, James E., और Anthony K : Smith Weatherspoon. Michigan Timber Industry an Assessment of Timber Product Output and Use. U.S. Department of agriculture, 1992.

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