00759nam a2200217Ia 4500 304640 20210210062656.0 110830s2010 pr 1 0 spa 0963342932 Arecibo Biblioteca 56.00 635.04 A473t2 51626 Álvarez Febles, Nelson, Local La tierra viva manual de agricultura ecológica Nelson Alvarez Febles. Ed. 2010. Universidad Metropolitana, P.R. Nomos 2010. 282 p. ill. 26 cm. Includes bibliographical references and index. Agricultural ecology 49832 Local Ecology 89958 Agriculture -- Environmental aspects -- Ecology. 194002 Local 223197 223197 0 0 ddc 0 635_040000000000000_A473T2 0 abpr 70951 1 1 B 2016-05-27 Libromar 56.00 485706 0 635.04 A473t2 60000010126099 2016-05-27 00:00:00 r:304640 23