For this assignment, you can use either of the MLA or APA citation styles.
A citation style is simply a set of rules about what information needs to be included in a citation as well as the format for that citation including punctuation and order of elements. It will include both in text citations as well as full citations in the bibliography.
Langara has citation guides for both MLA and APA format that provide examples of citations of different types of material such as print books, electronic journal articles, and websites. Follow the examples for your chosen citation style, and be consistent.