editor, Alan Williams
Emap, 1993
Buku Referensi
edited by, Alan Williams
Emap , 1993
Buku Referensi
[publisher not identified], [date of publication not identified]
Naskah
Bondan, Thomas A., editor; Kaser, Dale P., editor; Depanski, Robert J., editor; Stoss, Frederick W., editor
Carbon Dioxide Information Analysis Center, 1994
Buku Referensi
Brown, T. Merritt
Macmillan, 1970
Buku Teks