1. The Chemistry of Penicillin, Edited by H. T. Clarke, J. R. Johnson and R. Robinson, Princeton University Press. Princeton, N.J. (1949).
2. The Total Synthesis of Penicillin V
3. HOUBEN-WEYL, Die Methoden der Organischen Chemie, Vol. IX, Second Edition, Georg Thieme Verlag, Stuttgart (1955). Cf. also Vol. XI/2 of the Second Edition (1958).
4. Recent monographs include those of F. Challenger, V. du Vigneaud, E. E. Reid, Young and Maw, etc. Cf. the appendix for the full listing.
5. A list of references to recent reviews which pertain to organic sulfur compounds is given in the appendix.