You will receive the Dean's letter on Academics with Honor stating documentation requirements. Use that letter and the following guidelines to determine how to document work you submit to the Department of Physics.
Documentation is important.
Graded academic work will not be accepted without proper documentation. By submitting academic work to be graded, you represent it to be your own work except as documented. Thus, always document all help that you receive. Documentation consists in specifying from whom the help was received, the extent of the joint effort, and the depth of the help. Documentation is required for all graded homework.