APA (7 ম সংস্করণ) উদ্ধৃতি

Friedman, M. (2005). Trying hard is not good enough: How to produce measurable improvements for customers and communities. FPSI Publishing.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Friedman, Mark. Trying Hard Is Not Good Enough: How to Produce Measurable Improvements for Customers and Communities. Victoria, B.C.: FPSI Publishing, 2005.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Friedman, Mark. Trying Hard Is Not Good Enough: How to Produce Measurable Improvements for Customers and Communities. FPSI Publishing, 2005.