David,

It's not very long. My copy is 105 pages long. I can't recall for sure, but this work may be included in another one of his works...

Anyway, my copy is part of the following series:

"The Student Library" published by P&R

Hope this helps...

__________________
Pastor Steve Bradley
Trinity Reformed Presbyterian Church (RPCNA)
www.trinityrpc.org
www.sermonaudio.com/trinityrpc
www.reformedvoice.com/trinityrpc
Riva, MD