Outline what you want to say in your memo on a blank sheet of lined paper. This will allow you to organize your thoughts and present them in a coherent way. According to the APA handbook, a professional memo should be at least two pages long; this must include a title page, the main body, an abstract and your references.
Write the abstract for your memo. This should consist of two or three paragraphs about what the main points of the memo are.
Type up a rough draft of your memo. The title page should have your memo header, which should be formatted as such:
TO:
FROM:
DATE:
SUBJECT:
The body of the memo should contain your objective and any relevant information that your audience needs to know.
Format your references, which come at the end of the memo. Proper APA format for references is as follows:
Author's Last Name, Author's First Name. (Year of Publication). Title of the Article.
Title of Periodical or Journal, Volume Number (Issue Number), Page Numbers.
Proofread your memo and make any necessary changes before you send it out.