APA Format
Delury, George E; Delury, George E. (1977).
The world almanac & book of facts 1977 /edited George E. Delury
. : Newspaper Enterprise Association,.
MLA Format
Delury, George E; Delury, George E.
The world almanac & book of facts 1977 /edited George E. Delury
. : Newspaper Enterprise Association,, 1977
Chicago Format
Delury, George E; Delury, George E. The world almanac & book of facts 1977 /edited George E. Delury. : Newspaper Enterprise Association,, 1977.