RT @Rainmaker1973: How a book written in 1910 could teach you calculus better than several books of today [Calculus Made Easy, 1910] https:… 0 atbildes
 |
hardijs viškers (2018-03-12 01:36:58) |
RT @Rainmaker1973: How a book written in 1910 could teach you calculus better than several books of today [Calculus Made Easy, 1910] https:… | |