16 Printed matter, namely, books in the field of protection of the environment, sustainable development, water and water treatment and management, transportation, treatment of waste, waste management, production and distribution of energy; brochures, leaflets, and pamphlets in the field of protection of the environment, sustainable development, water and water treatment and management, transportation, treatment of waste, waste management, production and distribution of energy; printed forms; newsletters in the field of protection of the environment, sustainable development, water and water treatment and management, transportation, treatment of waste, waste management, production and distribution of energy; periodicals and magazines in the field of protection of the environment, sustainable development, water and water treatment and management, transportation, treatment of waste, waste management, production and distribution of energy; visiting cards; letterhead paper; garbage bags of paper or of plastic