By Stannard Allen, W..
London : Longman, 1993 .
338 p. ; 19,5 cm. 0582525063

By Pit Corder, S..
Harlow : Longman, 1992 .
257 p. ; 20 cm. 0582525128

By Strutt, Peter.
Harlow : Longman, 1993 .
321 p. ; 21,5 cm. 0582071534

By Quirk, Randolph.
Harlow : Longman, 1991 .
484 p. ; 23 cm. 0582552079

Buenos Aires : Juan Granda, 1977 .
477 p. ; , Contiene Gramática e Historia inglesa. 19 cm.

Madison, WI : American Society of Agronomy : | Crop Science Society of America : | Soil Science Society of America, 1988 0-89118-096-6