APA

Büchi J. R., Siefkes D., . (1973). The monadic second order theory of all countable ordinals. Berlin [u.a.]: Springer.

Chicago

Büchi Julius Richard, Siefkes Dirk, . 1973. The monadic second order theory of all countable ordinals. Berlin [u.a.]: Springer.

Harvard

Büchi J. R., Siefkes D., . (1973). The monadic second order theory of all countable ordinals. Berlin [u.a.]: Springer.

MLA

Büchi Julius Richard, Siefkes Dirk, . The monadic second order theory of all countable ordinals. Berlin [u.a.]: Springer. 1973.