APA (7e ed.) Bronvermelding

Spiro R T, S. R. L. (2013). Management of sales Force (11th.). Mc Graw Hill Education.

Chicago (17e ed.) Bronvermelding

Spiro R T, Stanton R L. Management of Sales Force. 11th. New Delhi: Mc Graw Hill Education, 2013.

MLA (9e ed.) Bronvermelding

Spiro R T, Stanton R L. Management of Sales Force. 11th. Mc Graw Hill Education, 2013.