@book{145,
	author = {Klemin, Wayne V. and Harsha, Ken.},
	title = {Microcomputers: a practical apporach to software applications},
	publisher = {McGraw-Hill Inc.,US,},
	year = {1989.},
	address = {New york},
	url = {https://archive.org/details/microcomputerspr0000klem}
}