Freyre, G. (1961). Portuguese integration in the tropics: Notes concerning a possible Lusotropicology which would specialize in the systematic study of the ecological-social process of the integration in tropical environments of Portuguese, descendants of Portuguese and continuators of Portuguese. s. n.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFreyre, Gilbert. Portuguese Integration in the Tropics: Notes Concerning a Possible Lusotropicology Which Would Specialize in the Systematic Study of the Ecological-social Process of the Integration in Tropical Environments of Portuguese, Descendants of Portuguese and Continuators of Portuguese. Lisbon: s. n, 1961.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFreyre, Gilbert. Portuguese Integration in the Tropics: Notes Concerning a Possible Lusotropicology Which Would Specialize in the Systematic Study of the Ecological-social Process of the Integration in Tropical Environments of Portuguese, Descendants of Portuguese and Continuators of Portuguese. s. n, 1961.