42 books • 11 series
Book #8: Sammy The Sheep Meets Deceit
Book #9: Sammy The Sheep Fell Asleep
Book #13: Sammy The Sheep Helps A Wounded Sheep
Book #15: Natas The Snake
Book #55: Introduction to Operator Theory I
Book #1: Arwyn
Book #2: My Alphabet Book; Letters A-C; English/Spanish
Book #121: Laboratory Testing of Road-marking Materials
Book #160: Characterisation of Bituminous Macadams by Indirect Tensile Stiffness Modulus
Book #250: Design of Long-Life Flexible Pavements for Heavy Traffic
Book #314: Road Trials of Stone Mastic Asphalt and Other Thin Surfacings