APA-viite (7. p.)

Dul, J. (2008). Case study methodology in business: Research. Elsevier.

Chicago-viite (17. p.)

Dul, Jan. Case Study Methodology in Business: Research. Amsterdam: Elsevier, 2008.

MLA-viite (9. p.)

Dul, Jan. Case Study Methodology in Business: Research. Elsevier, 2008.