Schaefer, John Paul, 1934- (Nombre personal)

His Mechanism studies on the selenium dioxide oxidation of ketones, 1959.

Fontana, B. L. Of earth and little rain, c1981: t.p. (John P. Schaefer) jkt. (president of Univ. of Ariz.)

Desert jewels, 2023: ECIP t.p. (John P. Schaefer)

The University of Arizona Press website, viewed May 4, 2022 (John P. Schaefer ... John Schaefer took up photography as a hobby thirty years ago, and has since become well recognized for his technical skill and has published ex[t]ensively on photographic technique ... president of the University of Arizona from 1971 to 1982 ... ©2022) https://uapress.arizona.edu/book/john-p-schaefer

An Ansel Adams guide : basic techniques of photography, 1992: portada (John P. Schaefer)