Gaya APA
Lawrence, Cliff. (1993).
TERRAIN EVALUATION MANUAL .
London:
HMSO.
Gaya Chicago
Lawrence, Cliff.
TERRAIN EVALUATION MANUAL.
London:
HMSO,
1993.
Text.
Gaya MLA
Lawrence, Cliff.
TERRAIN EVALUATION MANUAL.
London:
HMSO,
1993.
Text.
Gaya Turabian
Lawrence, Cliff.
TERRAIN EVALUATION MANUAL.
London:
HMSO,
1993.
Print.