Last time I checked, Vestal Press was owned by:

    National Book Network
    University Press of America
    4720 Boston Way
    Lanham, MD 20706

    Phone (301) 731-9515
    Fax (301) 459-2118
    Phone toll free in the us 800-462-6420

    email - mbass@nbnbooks.com

Some of those numbers should work.

Larry Lobel
Virtuoso Piano Service
Petaluma, California