What type of source is this? U.S. History for Eighth Graders

It general source

Explanation:

The other answer is so wrong, most school books are general source because they fit a lot of information in few pages

For plato, the asnwer is,

Of Messaline. Sebastian was my father;

Such a Sebastian was my brother too,

So went he suited to his watery tomb.

If spirits can assume both form and suit

You come to fright us.

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