For full functionality, including active links, we recommend downloading the PDF. Certain interactive features may not operate within the embedded viewer.
Download this PDF file
Download this PDF file
Reader Comments
Before posting a comment, read our privacy policy.Post a comment (login required)
Crossref Citations
1. Goue jubileum van metrisering: 50 jaar sedert die jaart
Cobus Vermeulen, Jannie Rossouw
Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie vol: 40 issue: 1 first page: 12 year: 2021
doi: 10.36303/SATNT.2021.40.1.805