1978 Environmental Impact Statement for the Army to build a brand new Chemical, Biological and Radiological Training Facility with references to the training at Treasure Island. These are the Course instructions, how they did it, what they measured out, etc.
GB is Sarin Gas
VX is a Nerve agent
Mustard Gas burns the skin, lungs, eyes etc
Appendix C-1 GB (Sarin) and VX Field Identification and Decontamination Exercises