VJ Chacko
A manual on sampling techniques for forest surveys VJ Chacko - Delhi Manager of publications 1964 - 167 p. 29 cm
COF
Double sampling
519.52 / CHA/MA
A manual on sampling techniques for forest surveys VJ Chacko - Delhi Manager of publications 1964 - 167 p. 29 cm
COF
Double sampling
519.52 / CHA/MA