Ramulu U. S., . (2003). Principles in the quantitative analysis of waters, fertilizers, plants and soils. Jodhpur: Scientific Publishers.
Ramulu U.S Sree, . 2003. Principles in the quantitative analysis of waters, fertilizers, plants and soils. Jodhpur: Scientific Publishers.
Ramulu U.S Sree, . Principles in the quantitative analysis of waters, fertilizers, plants and soils. Jodhpur: Scientific Publishers. 2003.