0256-7024
0256-7024
S0256-70242018000200039
10.15517/rgac.v59i0.34156
U.S.A
Costa Rica
00
12
2018
00
12
2018
59
39
47
[
1989
273-89
]
[
1994
]
[
1971
1
106-17
]
[
1974
18
121-251
]
[
2012
86
539-57
]
[
1986
34
199-208
]
[
2009
]
[
1987
]
[
1908
75
1-568
]
[
1996
337-53
]
[
1957
115
163-557
]
[
2014
30
139-55
]
[
2017
155-69
]
[
2007
443-51
]
[
1985
]
[
1944
75-76, 77-78, 8-29
13-24
]