301.326 Sim E Simmons, Alan Burtham, 1941- The emergence of planning in a modernizing community: migration adaptation, and family plannig in Highland Colombia. (Ithaca, N.Y.) 1970. xii, 234 p. ilus. 28 cm. (Cornell University. Latin American Studies Program. Dissertation series, no.15) Thesis (Ph.D.) - Cornell University. ´´Bibliography´´: p. 225-234