Gaya APA
Russell, B.
(1952).
Sceptical essays. (5th impr.). Oorspr.Uitg. 1935
.
London:
Allen & unwin.
Gaya MLA
Russell, B..
"Sceptical essays. (5th impr.). Oorspr.Uitg. 1935 ".
London:
Allen & unwin,
1952.
Buku.