Dr. Heidenhoff's Process has 140 pages.
Dr. Identity has 212 pages.
Dr. Futurity has 138 pages.
The House of Dr. Edwardes has 308 pages.
Dr. Franklin's Island has 245 pages.
The Circus of Dr. Lao has 154 pages.
From the Notebooks of Dr. Brain has 385 pages.
Dr. Seuss's Sleep Book has 56 pages.
Dr. Nikola Tesla Bibliography has 237 pages.
The Mystery of Dr. Fu-Manchu has 308 pages.
Hardcover: 160 pages or are you talking about the Dr. Seuss one?
Vida y Escritos del Dr. José Rizal has 512 pages.
62 pages in Dr. Suess' Green Eggs and Ham.