Catalogue of union periodicals / 
edited for the National Research Council & National Research Board by Percy Freer. 
 - Johannesburg,  1943-52. 
<br/><br/> Supplemented by: Supplement. v. 1 Science and technology. Pretoria, Suid-Afrikaanse Wotenshaplike en. Nywerheidnavorsingraad, South African Council for Scientific and Industrial Research, 1949-53. 
<br/><br/>1. Science and technology -- 2. Humanities. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Periodicals -- Bibliography -- Union lists.--Periodicals -- Bibliography -- Union lists.--Periodicals -- Bibliography -- Union lists.<br/>Science -- Periodicals -- Bibliography.--Science -- Periodicals -- Bibliography.--Science -- Periodicals -- Bibliography.<br/>Libraries -- South Africa.--Libraries -- South Africa.