Gaya APA
Humphrey, Edward. (1978).
The Americana Annual 1978 .
Canada:
Grolier Incorporated.
Gaya Chicago
Humphrey, Edward.
The Americana Annual 1978.
Canada:
Grolier Incorporated,
1978.
Text.
Gaya MLA
Humphrey, Edward.
The Americana Annual 1978.
Canada:
Grolier Incorporated,
1978.
Text.
Gaya Turabian
Humphrey, Edward.
The Americana Annual 1978.
Canada:
Grolier Incorporated,
1978.
Print.