Gaya APA
Leonard, John W.. (1988).
Tension Structures .
United State of America:
McGraw-Hill.
Gaya Chicago
Leonard, John W..
Tension Structures.
United State of America:
McGraw-Hill,
1988.
Text.
Gaya MLA
Leonard, John W..
Tension Structures.
United State of America:
McGraw-Hill,
1988.
Text.
Gaya Turabian
Leonard, John W..
Tension Structures.
United State of America:
McGraw-Hill,
1988.
Print.