APA

Elderfield R. C. (., . (1961). Heterocyclic compounds (vol-7): polycyclic compounds containing two hetero atoms in different rings. five and six membered hetrocycles containing three hetro atoms and their benzo derivatives. New York: John Wiely and Sons.

Chicago

Elderfield Robert Cooley (ed.), . 1961. Heterocyclic compounds (vol-7): polycyclic compounds containing two hetero atoms in different rings. five and six membered hetrocycles containing three hetro atoms and their benzo derivatives. New York: John Wiely and Sons.

Harvard

Elderfield R. C. (., . (1961). Heterocyclic compounds (vol-7): polycyclic compounds containing two hetero atoms in different rings. five and six membered hetrocycles containing three hetro atoms and their benzo derivatives. New York: John Wiely and Sons.

MLA

Elderfield Robert Cooley (ed.), . Heterocyclic compounds (vol-7): polycyclic compounds containing two hetero atoms in different rings. five and six membered hetrocycles containing three hetro atoms and their benzo derivatives. New York: John Wiely and Sons. 1961.