Gaya APA

Boichuk, Jeffrey P., Bolander, Willy et all. (). Learned Helplessness Among Newly Hired Salespeople and the Influence of Leadership . : American Marketing Association.

Gaya Chicago

Boichuk, Jeffrey P., Bolander, Willy et all. Learned Helplessness Among Newly Hired Salespeople and the Influence of Leadership. : American Marketing Association, . Text.

Gaya MLA

Boichuk, Jeffrey P., Bolander, Willy et all. Learned Helplessness Among Newly Hired Salespeople and the Influence of Leadership. : American Marketing Association, . Text.

Gaya Turabian

Boichuk, Jeffrey P., Bolander, Willy et all. Learned Helplessness Among Newly Hired Salespeople and the Influence of Leadership. : American Marketing Association, . Print.