@book{21325,
	author = {Handy, Richard and  Erika Rix},
	title = {Sketching the Moon},
	publisher = {Springer New York},
	year = {2012},
	series = {The Patrick Moore Practical Astronomy Series},
	address = {New York},
	url = {http://doi.org/10.1007/978-1-4614-0941-0}
}