Throop Polytechnic Institute annual catalogue for the year 1912-1913 : including a statement of requirements for admission, a description of the courses of instruction and announcements. Bulletin of Throop Polytechnic Institute 22 :58 (1913). Issued by: Throop Polytechnic Institute. https://resolver.caltech.edu/CaltechCampusPubs:20101006-133416098