Gaya APA

Hart, L, B., Waisman, C, S. (2005). The leadership training activity book: 50 exercises for building effective leader . United States of America: Amacom ( American Management Association ).

Gaya MLA

Hart, Lois, B.., Waisman, Charlotte, S.. "The leadership training activity book: 50 exercises for building effective leader". United States of America: Amacom ( American Management Association ), 2005. Book.