21
by Guzmán J., Manuel E.
Published 1989
Manuscript
22
by Ebbing, Darrell D.
Published 1997
Manuscript
23
by Mahan, Bruce M.
Published 1990
Manuscript
24
by Garzón, Guillermo
Published 1990
Manuscript
25
by Streitwieser, Andrew
Published 1991
Manuscript
26
by Meislich, Herbert
Published 1978
Manuscript
27
by Hein, Morris
Published 1992
Manuscript
28
by Burns, Ralph A.
Published 1996
Manuscript
29
by Daub, G. William
Published 1996
Manuscript
30
31
by Rodellar Lisa, Adolfo
Published 2002
Manuscript
32
by Oparín, A.
Published 1983
Manuscript
33
by Blatt, Frank J.
Published 1991
Manuscript
34
by Resnick,Robert.
Published 1995
Manuscript
35
by Ballesteros Tena, Nabor
Published 1984
Manuscript
36
by Barrallo Villar, Guillermo
Published 1989
Manuscript
37
by Vasco Montoya, Eloisa
Published 1996
Manuscript
38
by Tugores Ques, Juan
Published 1994
Manuscript
39
by Tamayo Valencia, Alfonso
Published 1999
Manuscript
40
by Tubau, Iván
Published 1998
Manuscript