@book{70627,
	author = {Byerly, William Elwood,},
	title = {An Elementary Treatise on Fourier's Series and Spherical, Cylindrical, and Ellipsoidal Harmonics :},
	publisher = {Project Gutenberg,},
	year = {2009},
	address = {Salt Lake City, UT :},
	note = {Release date is 2009-08-19},
	url = {https://www.gutenberg.org/ebooks/29779}
}