Gaya APA

Sayles, L, R. (1979). Grolier Business Library: Leadership What Effective Managers Really Do and How They Do It . Danbury: Grolier Incorporated.

Gaya MLA

Sayles, Leonard, R. "Grolier Business Library: Leadership What Effective Managers Really Do and How They Do It". Danbury: Grolier Incorporated, 1979. Text.