Photo atlas for biology
.Perry, James W.
;Morton, David
.Belmont :
, 1996. U.I.: Cent. ISBN: 0534235565. (M) MONOGRAFÍA
Wadsworth
Photo atlas for botany
.Perry, James W.
.Belmont :
, 1998. U.I.: Cent. ISBN: 0534529380. (M) MONOGRAFÍA
Wadsworth
Living in the environment
.Miller, G.Tyler
. 3a.California :
, 1982. U.I.: Cent. ISBN: 0534009948. (M) MONOGRAFÍA