23. Environmental Health Criteria 555,898 LASERS Lasers and optical radiation . - Geneva : World Health Organization, 1982. - 154 s. : il. -, 21 cm. -(Environmental Health Criteria ; 23) U dołu s. tyt.: Published under the joint sponsorship of the United Nations Environment Programme, the World Health Organization, and the International Radiation Protection Association. -Bibliogr. s. 133-146 ISBN 92-4-154083-4