APA
Walker Norman, . (1926). Introduction to practical biology: A course of work based chiefly upon the plant and arranged for use without special apparatus in either the classroom or the home. London, UK: Sir Isaac Pitman and Sons Ltd.
Chicago
Walker Norman, . 1926. Introduction to practical biology: A course of work based chiefly upon the plant and arranged for use without special apparatus in either the classroom or the home. London, UK: Sir Isaac Pitman and Sons Ltd.
Harvard
Walker Norman, . (1926). Introduction to practical biology: A course of work based chiefly upon the plant and arranged for use without special apparatus in either the classroom or the home. London, UK: Sir Isaac Pitman and Sons Ltd.
MLA
Walker Norman, . Introduction to practical biology: A course of work based chiefly upon the plant and arranged for use without special apparatus in either the classroom or the home. London, UK: Sir Isaac Pitman and Sons Ltd. 1926.