Gaya APA
9659. (1).
:
State&National Standards.
Gaya Chicago
9659.
Angels (Math).
:
State&National Standards,
1.
11/O/EDU/052.
Gaya MLA
9659.
Angels (Math).
:
State&National Standards,
1.
11/O/EDU/052.
Gaya Turabian
9659.
:
State&National Standards,
1.
11/O/EDU/052.