DeLong, T. (2019). Teaching by Heart: One Professor's Journey to Inspire. Harvard Business Review Press.
Chicago-referens (17:e uppl.)DeLong, Thomas. Teaching by Heart: One Professor's Journey to Inspire. Boston, Massachesutts: Harvard Business Review Press, 2019.
MLA-referens (9:e uppl.)DeLong, Thomas. Teaching by Heart: One Professor's Journey to Inspire. Harvard Business Review Press, 2019.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.