@book{19062,
	author = {Moyer, Robert E},
	title = {Schaum's outlinesTrigonometry},
	year = {2013},
	address = {New Dehli},
	edition = {5th},
	url = {https://libgen.is/book/index.php?md5=1C0D418771C0E3B3435A401D76F0D31D}
}