Form in publication, distribution, etc., area:

Form in collective uniform title:

1978

1978

c1978

1978

[1978?]

1978

[ca. 1978]

1978

1978, c1970

1978

1966 [i.e. 1965]

1965

[1966 or 1967]

1966

1978/1979

1978

1969 (1971 printing)

1969

c1942, 1973 printing

1942

[between 1906 and 1912]

1906

1394 [1974]

1974

anno XVIII [1939]

1939

1969-<1973>

1969

1970-1978

1970

<1975> -

1975

[18- -]

1800

[197-]

1970

[197-?]

1970