TY - BOOK ED - International Labour Office. TI - Introduction to work study SN - 8120406028 AV - T60 .I57 1979 U1 - 620.82 PY - 1979///, 1991 CY - Geneva, New Delhi PB - International Labour Office, Oxford & IBH Publishing Co. Pvt. Ltd KW - Work measurement KW - Methods engineering N1 - Errata slip inserted; Bibliography: p. 439-441 ER -