246. R.A.A. Muzzarelli and C. Muzzarelli. Native and modified chitins in the biosphere. In Nitrogen Containing Macromolecules in Biosphere and Geosphere, A. Stankiewicz, ed., ACS 707. American Chemical Society, Philadelphia, 1998. ISBN 0-8412-3582-1.

257. R.A.A. Muzzarelli. Native, industrial and fossil chitins. In P. Jollès and R.A.A. Muzzarelli, eds., Chitin and Chitinases, Birkhauser Verlag, Basel 1999, p. 1-6.

314. R.A.A. Muzzarelli. Chitin nanostructures in living organisms, In Gupta S.N. (Ed.). Chitin formation and diagenesis, New York, Springer (2009).

318. Muzzarelli RAA (2011). Nanochitins and nanochitosans, paving the way to eco-friendly and energy-saving exploitation of marine resources. In Comprehensive Polymer Science: Vol 10. Polymers for sustainable environment and energy. J. McGrath and R. Hoefer, eds., Heidelberg, Springer.