|
| ||||
|
|
Nº.06. On the Friesian cattle lines, Approach to a critical synthesis of the situation Publication year: 1980 Language: Spanish Considering the problem of the improvement of Friesian cattle, it is impossible to avoid a certain controversy about dairy types, which in our case leads to the contrast between the European and Ameri... Free eBook |
![]() | Study of the main commercial hardwoods of peninsular hardwoods. Fernando Nájera y Angulo; Valentín López Fraile Publication year: 1969 Language: Spanish This work begins, a first chapter that with the name of "Generalities", tries to collect some concepts of great utility for the understanding of the pages that follow. The same intention is to study t... Free eBook |
![]() | H.T.Nº 02. Characteristics and uses of the paste IFIE used as turpentining treatment Publication year: 1974 Language: Spanish The use of stimulants in solid resin tapping through the bark Pica system represents a technological breakthrough respect to other stimulants better known as liquids. The advantages are its ease of im... Free eBook |