APA aipamena

Nowell, C. E. (1973). Portugal. Prentice-Hall, Inc.

Chicago Style aipamena

Nowell, Charles E. Portugal. Englewood Cliffs, New Jersey: Prentice-Hall, Inc, 1973.

MLA aipamena

Nowell, Charles E. Portugal. Prentice-Hall, Inc, 1973.