@book{21089,
	author = {Vollenweider, Richard A., and Talling, J. F.},
	title = {A manual on methods for measuring primary production in aquatic environments /},
	publisher = {Blackwell Scientific,},
	year = {1974.},
	series = {IBP handbook ; no. 12},
	address = {Oxford [etc.] :},
	edition = {2nd ed.},
	note = {Includes index.}
}