Gaya APA

Sachs, H, D. (2013). Remember Everything You Want and Manage The Rest : Improve Your Memory and Learning, Organize Your Brain and Effectively Manage Your Knowledge . Sl.: Sn..

Gaya MLA

Sachs, Helmut, D.. "Remember Everything You Want and Manage The Rest : Improve Your Memory and Learning, Organize Your Brain and Effectively Manage Your Knowledge". Sl.: Sn., 2013. Elektronik/Digital.