TY - RPRT TI - High-resolution sidescan-sonar imagery of the Manchas Interiores-Manchas Exteriores coral reef complex, Mayaguez, Puerto Rico AU - William C. Schwab AU - R. M. Webb AU - W. W. Danforth AU - T.F. O’Brien AU - B.J. Irwin PY - 1992 DO - 10.3133/ofr91436 UR - https://pubs.usgs.gov/publication/ofr91436 ID - ofr91436 ER -