Gaya APA
Roberts, K. (-1963).
Oliver Wiswell, (repr) - Crèst books, M 648 Penerbitan asli 1940. .
Greenwich Conn:
Fawcett Publications.
Gaya MLA
Roberts, K..
"Oliver Wiswell, (repr) - Crèst books, M 648 Penerbitan asli 1940. ".
Greenwich Conn:
Fawcett Publications,
-1963.
Buku.