The World Book Yearbook - Year Book Years 1966-1969 - Lot of 4 Encyclopedias

Includes:
The World Book: Year Book - 1966 ~ Review of Events of 1965

The World Book: Year Book - 1967 ~ Review of Events of 1966.

The World Book: Year Book - 1968 ~ Review of Events of 1967

The World Book: Year Book - 1969 ~ Review of Events of 1968

Good condition, no writing on pages or rips inside

These books appear to have sat on bookshelf for many years. Top of spines (as shown in pics) has the most signs of wear from dust sitting on them.