Who is the author of Constants Bengali?

The author of the book 'Constants Bengali'is John Doe. and this book published in 1940

What is the Publish date of Constants Bengali?

'Constants Bengali' was published in 1940.

The name of the publisher is 270.

Yes Offcourse this book have pdf version , not only its have many versionConstants Bengali.

You Can find this book Constants Bengali, at book.pdfforest and it's totally free, no need to pay.