Gaya APA
GREGORY, R, L, (., CRONLY, J, R, (. (1991).
VISION and visual dysfunction, volume 2: .
London:
Macmillan Press.
Gaya MLA
GREGORY, Richard, L, (ed)., CRONLY, John, R, (ed).
"VISION and visual dysfunction, volume 2:".
London:
Macmillan Press,
1991.
Buku.