Sipho Sepamla was a strong voice against African Apartheid. Hurry Up to It was his first published book of poems.
The poem anthology Hurry Up to It was published in 1975 and is not available for free on the web because it is still under copyright. However, you can purchase a copy online from a used book dealer like alibris or amazon.com. The book is rare and out of print though, so be prepared to spend around $40. You might be able to find it at a library. If you have a university library, I would try there first. Even if they don’t have the book, they might be able to use inter-library loan to get you a copy.