Thumann, Albert
Biorhythms and industrial safety - 1st ed. - Atlanta Fairmont Press 1977 - 166 p. ill. 24 cm.
Includes bibliographies
0915586045
614.8 / THU/1977
Biorhythms and industrial safety - 1st ed. - Atlanta Fairmont Press 1977 - 166 p. ill. 24 cm.
Includes bibliographies
0915586045
614.8 / THU/1977