1972
Gerdts, William H., Dr. and Mrs., 1971
Gerdts, William H., Dr. and Mrs., 1968
Gerdts, William H., Dr. and Mrs., 1972
Various Artists, 1970
Gerdts, William H., Dr. and Mrs., 1970
Evert Geradts, 1972
Various Artists, 1977
Various Artists, 1831
Various Artists, 1675