One of the most important things you should be familiar with when writing critique is article critique format. In most cases you will be asked to perform your critique assignment using APA formatting. The APA article critique style is accepted by a number of universities. To write a critique in this style, you must familiarize yourself with the general rules and guidelines of the APA format relating to margins, spacing, fonts, texts, abstracts, quotations, title page, body and so on.
Purdue OWL: APA Formatting and Style Guide