The complete title of the book is : Track and Time -- A Operational History of the Western Pacific Railroad through Timetables and Maps. The author is Jeff S. Asay, published in 2006 by The Feather River Rail Society P.O. Box 608 Portola, CA 96122. ISBN 0-9777814-0-2; Library of Congress Control Number:2006900857. My copy is softcover; I do not know if a hardcover version was printed. Consider checking with Powell's Books in Portland, OR., or Whistle Stop Trains, also in Portland.
As I stated above, I have a larger version of the San Francisco Railroad trackage map " somewhere " in my rather large collection of RR books; it may even be in a past issue of WP Mileposts or... maybe even in one of my Santa Fe books. Dammit now I just gotta go find it...