@book{51629,
	author = {Aggarwal, R K and National Remote Sensing Agency, (Andhra Pradesh) and Jaiswal, A K},
	title = {NRSA technical reports, 1977},
	publisher = {NRSA},
	year = {1977},
	address = {Secunderabad},
	note = {V4: An experiment on calibration of multispectral photography for determination of reflectance from photographic densities}
}