Gaya APA
Watt, Alec R.. (1990).
Longman illustrated dictionary of geology : the principles of geology explained and illustrated .
Harlow:
Longman.
Gaya Chicago
Watt, Alec R..
Longman illustrated dictionary of geology : the principles of geology explained and illustrated.
Harlow:
Longman,
1990.
Text.
Gaya MLA
Watt, Alec R..
Longman illustrated dictionary of geology : the principles of geology explained and illustrated.
Harlow:
Longman,
1990.
Text.
Gaya Turabian
Watt, Alec R..
Longman illustrated dictionary of geology : the principles of geology explained and illustrated.
Harlow:
Longman,
1990.
Print.