Template:Eastaway2019
From Kolesnikov.org
Eastaway2019: Eastaway Rob. Maths on the Back of an Envelope: Clever Ways to (Roughly) Calculate Anything. — HarperCollins, 2019. — 202p.
Eastaway2019: Eastaway Rob. Maths on the Back of an Envelope: Clever Ways to (Roughly) Calculate Anything. — HarperCollins, 2019. — 202p.