4
5
Published 1982
Book
6
Published 1967
Journal / Magazine
7
Published 1973
Book
8
by Pettijohn, F. J. 1904-1999.
Published 1975
Book
9
10
Published 1991
Book
12
Published 1977
Book
16
Published 1978
Book
18
by Boggs, Sam.
Published 2006
Book
20