Gaya APA

Westward Expansion. (0000). ~: ~.

Gaya Chicago

Westward Expansion. ~. ~: ~, 0000. Buku.

Gaya MLA

Westward Expansion. ~. ~: ~, 0000. Buku.

Gaya Turabian

Westward Expansion. ~: ~, 0000. Buku.