International register of potentially toxic chemicals.

Manylion Llyfryddiaeth
Awdur Corfforaethol:	International Register of Potentially Toxic Chemicals (United Nations)
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Geneva United Nations Environment Programme c1987.
Pynciau:	Hazardous substances > Handbooks, manuals, etc.