Apparently the only source for "A Spiritual Psalter" is The St.John of Kronstadt Press 1180 Orthodox Way Liberty TN 37095. The ISBN is 0-912927-40-2.
My copy is leather hardbound and cost $25(thru our parish bookstore)--read it daily--worth every penny.Highly recommended!
Regards,Bob
Thank you for the info.I'll definitely order it when I get my dough this week! $25.00 is not too bad.That's about what I paid for my "Liturgy of the Hours."