Gaya APA
SIMPSON, Ian. (1987).
The encyclopedia of drawing techniques .
London:
A Quarto Book.
Gaya Chicago
SIMPSON, Ian.
The encyclopedia of drawing techniques.
London:
A Quarto Book,
1987.
.
Gaya MLA
SIMPSON, Ian.
The encyclopedia of drawing techniques.
London:
A Quarto Book,
1987.
.
Gaya Turabian
SIMPSON, Ian.
The encyclopedia of drawing techniques.
London:
A Quarto Book,
1987.
.