Peña, R. d. l. (1974). Richard E. Bilsborrow. The preparation of an inventory of demographic data for social and economic planning. Chapel Hill, [N. C.]: Laboratories for Population Statistics, The University of North Carolina at Chapel Hill, 1974. 39 p. El Colegio de México A.C.
Style de citation Chicago (17e éd.)Peña, Raúl de la. Richard E. Bilsborrow. The Preparation of an Inventory of Demographic Data for Social and Economic Planning. Chapel Hill, [N. C.]: Laboratories for Population Statistics, The University of North Carolina at Chapel Hill, 1974. 39 P. El Colegio de México A.C, 1974.
Style de citation MLA (9e éd.)Peña, Raúl de la. Richard E. Bilsborrow. The Preparation of an Inventory of Demographic Data for Social and Economic Planning. Chapel Hill, [N. C.]: Laboratories for Population Statistics, The University of North Carolina at Chapel Hill, 1974. 39 P. El Colegio de México A.C, 1974.