1. English abstracts of selected articles from Soviet bloc and mainland China technical journals: series 1, Physics, geophysics, astrophysics, astronomy, astronautics, and applied mathematics, no. 1 and 2, Feb. and Mar. 1961. Bookmark Corporate/Agency Authors: Business and Defense Services Administration and Commerce Dept. Publisher: Business and Defense Services Administration Date: [1961.] SuDoc number: C 41.84:1,2