Guide To Clinical Trials Loose-Leaf $265.00 Format Shelf Copy Print-on-Demand Purchase a Print-on-Demand copy if the Shelf Copy is out of stock and we'll print you a copy within two business days. The Print-on-Demand fulfillment process increases online order processing time by one business day. Print-on-demand copies can still be picked up in store, even when in store pickup is unavailable for other items.