title: INTERLABORATORY COMPARISON OF ABSORPTION SPECTRA BY THE PHOTOELECTRIC SPECTROPHOTOMETRIC METHOD.-DETERMINATIONS ON CHLOROPHYLL AND WEIGERT'S SOLUTIONS.
authors.affiliation: Purdue University Agricultural Experiment Station, West Lafayette, Indiana.
authors.forename: F P
authors.initials: FP
authors.lastname: Zscheile
authors.forename: C L
authors.initials: CL
authors.lastname: Comar
authors.forename: G
authors.initials: G
authors.lastname: Mackinney