APA
Clark John A, Fitzpatrick Frederick L Smith Edith Lillian, . (1943). Science on the March, Book 2. Boston, USA: Houghton Mifflin Company.
Chicago
Clark John A, Fitzpatrick Frederick L Smith Edith Lillian, . 1943. Science on the March, Book 2. Boston, USA: Houghton Mifflin Company.
Harvard
Clark John A, Fitzpatrick Frederick L Smith Edith Lillian, . (1943). Science on the March, Book 2. Boston, USA: Houghton Mifflin Company.
MLA
Clark John A, Fitzpatrick Frederick L Smith Edith Lillian, . Science on the March, Book 2. Boston, USA: Houghton Mifflin Company. 1943.
