APA Style
Handley, Bill. ([s.a.]).
Speed Mathematics : Secret Skills For Quick Calculation .
[s.l.]:
.
Chicago Style
Handley, Bill.
Speed Mathematics : Secret Skills For Quick Calculation.
[s.l.]:
,
[s.a.].
Buku.
MLA Style
Handley, Bill.
Speed Mathematics : Secret Skills For Quick Calculation.
[s.l.]:
,
[s.a.].
Buku.
Turabian Style
Handley, Bill.
Speed Mathematics : Secret Skills For Quick Calculation.
[s.l.]:
,
[s.a.].
Buku.