Salam signing book during his visit in Milwaukee, Wisconsin.  He gave a speech on 09/29/1989 on elementary particles and the model of the Universe and described that it spans a wide dimension and includes objects as small as 10^-25 meter to as big as 10²⁶ meters!

Abdus Salam shared the 1979 Nobel Prize in Physics with Sheldon Glashow and Steven Weinberg.  Following are the sites highlighting Salam's Nobel Prize Ceremony:

Salam's Bio: http://nobelprize.org/nobel_prizes/physics/laureates/1979/salam-bio.html

Salam's Nobel Lecture, December 8, 1979: The Lecture in pdf-format

Salam's Banquet Speech:  http://nobelprize.org/nobel_prizes/physics/laureates/1979/salam-speech.html

The book Salam signing above is called "NOTES ON SCIENCE, TECHNOLOGY AND SCIENCE EDUCATION IN THE DEVELOPMENT OF THE SOUTH."  This book describes recipes for the development of the third world countries.  It is a valuable source that can benefit a lot of people.  The text in its entirety can be downloaded (~13 MB) from here.