APA Style
SMITH, George. (1938).
The dictionary of national biography, v.21 .
London:
Oxford University Press.
Chicago Style
SMITH, George.
The dictionary of national biography, v.21.
London:
Oxford University Press,
1938.
Text.
MLA Style
SMITH, George.
The dictionary of national biography, v.21.
London:
Oxford University Press,
1938.
Text.
Turabian Style
SMITH, George.
The dictionary of national biography, v.21.
London:
Oxford University Press,
1938.
Print.