Here is some help with punctuating in-text citations.  This info was generated by questions from your classmates:

What is the placement of quotation marks and parentheses?

The closing quotation mark go just before the opening parenthesis.  In addition, only one period (to end the sentence) is used to end the sentence, and it comes after the closing parenthesis.

So the following has one too many periods because the period is not needed after the 1930's.

WRONG

Schneider writes about how his mother “lettered in field hockey and basketball while attending Hofstra University in the late 1930s.” (13).

No period is needed after 1930's.

The only period needed is the one the follows the parenthesis after 13.  The correction is

CORRECTED

Schneider writes about how his mother “lettered in field hockey and basketball while attending Hofstra University in the late 1930s” (13).

What do I do when a comma or period completes with a closing quotation mark for the same space?

When a period or comma completes with a quotation mark for the same location, ALWAYS place the competing period or comma inside the closing quotation mark, never outside, so the sentence below is absolutely correct.

Cliff Schneider describes in his essay “I'm Still Learning from My Mother,” the relationship with his mother, and her apt athletic spirit.

Note that the comma goes before the closing quotation mark.

Jim-)