APA (7 वां संस्करण) प्रशस्ति पत्र

Christopher, T. (2011). The new American landscape: Leading voices on the future of sustainable gardening. Timber Press.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Christopher, Thomas. The New American Landscape: Leading Voices on the Future of Sustainable Gardening. Portland, Or.: Timber Press, 2011.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Christopher, Thomas. The New American Landscape: Leading Voices on the Future of Sustainable Gardening. Timber Press, 2011.

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