1. “Chemistry and Enzymology of Marine Algal Polysaccharides,”;Percival,1967
2. “Composition and Properties of Alginates,”;Haug,1964
3. “Marine Algae,”;Levring,1969
4. A. Okazaki “Seaweeds,” a report concerning Japanese seaweed and its utilization, personal communication, 1964 (revised 1970)
5. “The Chemistry of Plant Gums and Mucilages,”;Smith,1959