@book{11249,
	author = {Farnsworth, Norman, R.},
	title = {The pharmacognosy of the periwinkles: Vinca and catharanthus},
	url = {https://drive.google.com/file/d/1yw_1LHE1oPvsew-8F0mYMwyL1qLITVQ6/view?usp=drivesdk}
}