H

Hunma, Rannoo Rajahram (1973) Studies in isothiazole chemistry: I. isothiazolo [5,4-b] pyridines. II. approaches to isothiazolynes. PhD thesis, Thames Polytechnic.

P

Palmer, E. R. and Gibbs, J. A. (1973) Pulping characteristics of three trees of Pinus caribaea with different densities grown in Jamaica. Tropical Products Institute (TPI), London, UK. ISBN 0859540065