Pyrazolones, pyrazolidones, and derivatives [by] Richard H. Wiley [and] Paul Wiley. (The Chemistry of heterocyclic compounds; a series of monographs, v. 20)
Pyrazolones, pyrazolidones, and derivatives [by] Richard H. Wiley [and] Paul Wiley.
(The Chemistry of heterocyclic compounds; a series of monographs, v. 20)