Farnsworth, E. Allan, author
Oceana Publication, 1983
Buku Teks
Farnsworth, E. Allan, author
Oceana Publications,Inc, 1963
Buku Teks
Morehead, Joe, author
Libraries Unlimited, 1978
Buku Teks
Morehead, Joe, author
Libraries Unlimited, 1978
Buku Teks
Mayers, Lewis
Harper & Brothers, 1955
Buku Teks