By Employee Relations Services. no.66-26 (1966:July 11). Item is in English.

By Employee Relations Services. no.66-27 (1966:July 18). Item is in English.

By Employee Relations Services. no.66-28 (1966:July 25). Item is in English.

By Employee Relations Services. no.66-28 (1966:July 25). Copy 2. Item is in English.

By Employee Relations Services. no.66-29 (1966:Aug. 1). Item is in English.

By Employee Relations Services. no.66-29 (1966:Aug. 1). Copy 2. Item is in English.

By Employee Relations Services. no.66-30 (1966:Aug. 8). Item is in English.

By Employee Relations Services. no.66-31 (1966:Aug. 15). Item is in English.

By Employee Relations Services. no.66-32 (1966:Aug. 22). Item is in English.

By Employee Relations Services. Supplement (1966:Aug. 29). Item is in English.