ELDER, M. (1982). Keamanan di air. Gama ocipta offset.
Chicago Style CitationELDER, Mark. Keamanan Di Air. Gama ocipta offset, 1982.
MLA CitationELDER, Mark. Keamanan Di Air. Gama ocipta offset, 1982.
Warning: These citations may not always be 100% accurate.