Personal training in Europe : the most comprehensive international study on personal training

MLA

Gronau, Niels, and Gregor Titze. Personal Training In Europe : the Most Comprehensive International Study On Personal Training. Den Bosch: Black Box Publishers, 2018.

APA

Gronau, N., & Titze, G. (2018). Personal training in Europe : the most comprehensive international study on personal training. Den Bosch: Black Box Publishers.

Chicago

Gronau, Niels, and Gregor Titze. Personal Training In Europe: The Most Comprehensive International Study On Personal Training. Den Bosch: Black Box Publishers, 2018.