Springer has a program that allows the Caltech community to purchase print copies of books that the Library has purchased electronically from Springer. There are thousands of title included in this program. If you're on campus or using VPN you'll see this button on the right hand side of an ebook page in SpringerLink:
Springer will print the title on demand and ship it to you for the price indicated. If you have questions about what titles are included in this program please email library@caltech.edu.