APA (7th ed.) Citation

Widdowson, M. (2011). Case Study Research Methodology. International Centre For Transactional Analysis Qualifications.

Chicago Style (17th ed.) Citation

Widdowson, Mark. Case Study Research Methodology. International Centre For Transactional Analysis Qualifications, 2011.

MLA (8th ed.) Citation

Widdowson, Mark. Case Study Research Methodology. International Centre For Transactional Analysis Qualifications, 2011.

Warning: These citations may not always be 100% accurate.