@book{104658,
	author = {Stanley, William Ford, and Tallack, H. T.},
	title = {Surveying and Levelling Instruments, Theoretically and Practically Described. :},
	publisher = {Project Gutenberg,},
	year = {2020},
	address = {Salt Lake City, UT :},
	note = {Release date is 2020-11-21},
	url = {https://www.gutenberg.org/ebooks/63834}
}