Volunteers serve in almost all of California's state park units and lend invaluable assistance.

He has given me invaluable assistance and will be our guest.

He gave us invaluable assistance and had a grand time smashing things up.

Our programs will provide invaluable assistance, support and information as you progress through the various stages of your business' growth.

I ought to try, I said, since you offer me such invaluable assistance.

It is their invaluable assistance that makes the job of assisting local Peruvian communities possible.

As former members of such a society, they provided invaluable practical assistance to its founding and maintenance.

But Forrest felt lighter; he and the others were paying a price for this invaluable assistance.

Other members of the health care team can provide invaluable assistance to support the depressed patient, and his or her family.

Europe provided invaluable assistance to us at a critical period in our national development.