TY  - RPRT
TI  - Chemical composition of ferromanganese crusts in the world ocean: a review and comprehensive database
AU  - Frank T. Manheim
AU  - Candice M. Lane-Bostwick
PY  - 1989
DO  - 10.3133/ofr8920v.1.1
UR  - https://pubs.usgs.gov/publication/ofr8920
ID  - ofr8920
ER  -