Gaya APA
Spangler, W.M.. (1982).
Practical arithmetic part 6: ratio, proportion, and per cent / W.M. Spangler (Ed. 2).
:
Scranton: Intext.
Gaya Chicago
Spangler, W.M..
Practical arithmetic part 6: ratio, proportion, and per cent / W.M. Spangler.
Ed. 2
:
Scranton: Intext,
1982.
Buku.
Gaya MLA
Spangler, W.M..
Practical arithmetic part 6: ratio, proportion, and per cent / W.M. Spangler.
Ed. 2
:
Scranton: Intext,
1982.
Buku.
Gaya Turabian
Spangler, W.M..
Practical arithmetic part 6: ratio, proportion, and per cent / W.M. Spangler.
Ed. 2
:
Scranton: Intext,
1982.
Buku.