1960

This pamphlet is also available in English (WN85-0456).

1961

This pamphlet is also available in English (WD85-0511).

1959

This pamphlet is also available in English (WN85-0429).

1958

This pamphlet is also available in English (WN85-0427).

1957

This pamphlet is also available in English (WN85-0426).

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