//=preg_replace('/[^a-z0-9]/', '', strtolower($formats[0]))?>//=$formats[0] ?>
Strength of materials II by: Sochor, Miroslav, 1937- Published: (2001)
//=preg_replace('/[^a-z0-9]/', '', strtolower($formats[0]))?>//=$formats[0] ?>
Mechanics and strength of materials by: Silva, Vítor Dias da Published: (2006)