Home › Authors › Clifford H. Prator 👤 Clifford H. Prator 4 books Books by Clifford H. Prator Manual of American English pro Manual of American English pronunciation for adult foreign students 2022 Henry Christophe and Thomas Cl Henry Christophe and Thomas Clarkson 1968 Manual of American English pronunciation 1957 Language teaching in the Phili Language teaching in the Philippines, a report 1956