Craven, Paul R.
Biography
Dickenson Publishing, 1968
 Buku Teks
Schulz, Erich J.
Diesel mechanics / Erich J. Schulz
McGraw-Hill , 1983
 Buku Teks
Schulz, James H.
the economics of Aging / James H. Schulz
Wadsworth, 1985
 Buku Teks
Schulz, Erich J.
Diesel equipment I / Erich J. Schulz
McGraw-Hill, 1982
 Buku Teks
Schulz, Erich J.
Diesel equipment II / Erich J. Schulz
McGraw-Hill, 1982
 Buku Teks