Year 1967 - no. 1, 15 and 21 are missing. Year 1968 - no. 11 and 17 are missing. Mladá fronta, Prague 1967 a 1968.

1st edition. Academia, Prague 2006.

Karel Synek, Prague 1937.

SNTL, Praha 1955.

Prace - Roh, Prague 1960.

I. L. Kober, Praha no date.

Volume 1 - 12. 5th year. Prace, Praha 1954.

Polygrafia, Praha, no date. Nice typo.

I.L. Kober, Praha, 1870. 290 woodcuts in text. 3nd volume of book Kronika prace.

Load of photos and technical drawings. SNTL and AVTL, Bratislava 1963.

SNTL, Praha 1982. 1st edition.

Prumyslove vydavatelstvi, Praha 1952.

Year XI., 1932 - 1933, no. 1-10. Vzdělávací spolek Vesmír, Prague 1932 - 1933.

Year XIV. 1935 - 1936, no. 1 - 10. Vzdělávací spolek Vesmír, Prague 1935-1936.

Prirodovedecke vydavatelstvi, Praha 1952. 1st edition.

2 volumes. Ceskoslovenska spolecnost chemicka, Praha 1927 and 1930.

12nd year. Fr. Borovy, Praha 1946.

SNTL, Prague 1953. 1st edition.

Mladá fronta, Prague 1957.

Ilustration by Jiri Kratky, Jan Rajchrt a Lad. Sarnovsky. Dr. Karolina Kolarova, Praha 1942.

1st issues. Ceska matice technicka, Praha 1921.

Prace, Praha 1950.

Prace, Praha 1949. 1st edition.

SNTL, Praha 1964. 1st edition.

Roh-Práce, Praha 1952.