0120-3479 0120-3479 S0120-34792023000200002 10.25100/lenguaje.v51i2.12137 Colombia Colombia 00 12 2023 00 12 2023 51 2 288 336

2012 1978 1999 2004 2nd ed 1990 1976 Ciclo del nitrógeno 2018 3 23 1974 8 4 4 389-99 1976 9 1-43 1979 49 222-51 California State Department of Education 1981 1984 1984 1984 1998 1982 3ª. ed 2004 Second edition 2010 1964 1973 2004 2004 3rd. ed 2014 4th ed 1959 1976 2nd ed 2011 11 2 2 241-74 2011 11 3 3 408-63 2011 12 1 1 5-45 2012 12 2 2 316-33 1984 1952 Rev. ed 1989 64 64 195-278 2003 1996 1977 1977 57-108 1960 1994 1954 2017 1982 2001 2004 1979 2nd ed 2012 2003 3-34 2019 173-96 2017 1971 1982 1973 9 347-82 1996 2004 Second edition 2014 3rd ed 2018 46 1 1 11-40 2021 49 2 2 231-74 2000 1 4 4 74-88 2002 269-92 2004 8 97-134 2005 249-59 2008 2017 45 2 2 383-417 2021 2004 1985 1971 Revised edition UNESCO 1952 688-716 1974 3rd ed 1979 1976