The author is Jane, and page number is 20
"AAAAAAAAAA." (Jane 20) BBBBBBBB
And now i need to have a new sentance, so should i put a period after (Jane 20) which is
"AAAAAAAAAA." (Jane 20). BBBBBBBB
In general, I always advocate putting a period after closing parenthesis. If you are quoting, you would format it as follows:
Here the quote "AAAAAAAA" (Jane 20) ends.
Here ends the quote: "AAAAAAAA" (Jane 20).
You never make the citation into its own sentence:
WRONG --> Here ends the quote "AAAAAAAA." (Jane 20).
Place the period inside the parenthesis only if the parenthetical statement is a separated sentence. (This one, for example.) But you wouldn't put the period inside otherwise (for example, here).
The above are correct. You only need one period after the parenthesis. However, if you want more information on who to do in-text citations with a bunch of variations, then take a look at this website: http://owl.english.purdue.edu/owl/resource/747/02/
It is from Purdue University and it gives a nice summary of MLA citation rules.
Completely true. You only need one period to end any sentence. You can either use the period that is included in the quote if you want to end your sentence with the quote or just show the end of the quote with speech marks and then go on to end the sentence when you are ready.
The above answer is a good way to think about it. You are basically including the quotation and the citation (in parenthesis) in the same sentence. So you put one period, after the parenthesis, and that is all. This is true for MLA and most other methods.
You need only one period, to end your own sentence, even if the sentence you are quoting ends with a period. You simply don't need to quote the author's period. You use your OWN period to end your OWN sentence, like this:
"AAAAAAAAAA" (Jane 20). BBBBBBBB