Gaya APA
The International Who's Who 1990-91. (1990).
England:
Eropa Publications Limited.
Gaya Chicago
The International Who's Who 1990-91.
54th Edition.
England:
Eropa Publications Limited,
1990.
Text.
Gaya MLA
The International Who's Who 1990-91.
54th Edition.
England:
Eropa Publications Limited,
1990.
Text.
Gaya Turabian
The International Who's Who 1990-91.
England:
Eropa Publications Limited,
1990.
Print.