Catholic Worker International Gathering Chestnut Hill, Mass, Beardslee, B., & Gregory, J. (1991). Philosophy of the Green Revolution.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCatholic Worker International Gathering Chestnut Hill, Mass, Bill Beardslee, और Judith Gregory. Philosophy of the Green Revolution. 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCatholic Worker International Gathering Chestnut Hill, Mass, et al. Philosophy of the Green Revolution. 1991.
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