Kukielski, P. (2015). Roses without chemicals: 150 disease-free varieties that will change the way you grow roses (1st edition.). Timber Press, Inc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKukielski, Peter. Roses Without Chemicals: 150 Disease-free Varieties That Will Change the Way You Grow Roses. 1st edition. Portland, Oregon: Timber Press, Inc., 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKukielski, Peter. Roses Without Chemicals: 150 Disease-free Varieties That Will Change the Way You Grow Roses. 1st edition. Timber Press, Inc., 2015.
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