FRENGUELLI, Joaquín, & Héctor A. ORLANDO 1958 Diatomeas y silicoflagelados del Sector Antártico Sudamericano Publ. Inst. Antárt. Argent. 5. 191 pp., incl. XVII pls., 19 figs. (Figs. 2, 3, 6, 15, 17, maps on folders)