TY - RPRT TI - Physiographic diagram of the world ocean's seafloor; topography of the world ocean's seafloor (with land contours at same interval) AU - Thomas E. Chase AU - B. A. Seekins AU - J. D. Young PY - 1981 DO - 10.3133/ofr82531 UR - https://pubs.usgs.gov/publication/ofr82531 ID - ofr82531 ER -