Gaya APA

LEWIS, C., MALMGREN, P. (2019). THE LEADERSHIP LAB : UNDERSTANDING LEADERSHIP IN THE 21ST CENTURY . NEW YORK: KOGAN PAGE.

Gaya MLA

LEWIS, CHRIS., MALMGREN, PIPPA. "THE LEADERSHIP LAB : UNDERSTANDING LEADERSHIP IN THE 21ST CENTURY". NEW YORK: KOGAN PAGE, 2019. Text.