HICKS, H. G., & GULLETT, C. R. (1981). Management.-- Ed.4. McGraw-Hill International.

HICKS, Herbert G., and C. Ray GULLETT. Management.-- Ed.4. Auckland: McGraw-Hill International, 1981.

HICKS, Herbert G., and C. Ray GULLETT. Management.-- Ed.4. McGraw-Hill International, 1981.