3 Ebooks de D. Vaughan
T. Asbury & D. Vaughan: Ophthalmologie
In Zeiten rapide anwachsenden Wissens auf vielen Gebieten der Augenheilkunde ist es schwierig, ein Buch zu schreiben, das nicht sehr schnell seinen Wert dadurch ein büßt, daß es schon vor oder kurz …
PDF
Germana
DRM
€56.84
R.E. Malcolm & D. Vaughan: Soil Organic Matter and Biological Activity
It has long been recognized that soil organic matter is the key to soil fertility. As a nutrient store it gradually provides essential elements which the soil cannot retain for long in inorganic form …
PDF
Engleză
DRM
€57.64
Nigel Maxted & Helen Moss: Asian Vigna
The Asian beans and grams, the species of Vigna (subgenus Ceratotropis), include several legumes that are an essential component in the diets of a large proportion of Asia’s population, and interest …
PDF
Engleză
DRM
€114.91