Extension project circular /

Description based on: No. 16 (Mar. 1936).

Circular /

Description based on surrogate of: 486, issued Sept. 1938, revised Sept. 1939; title from cover.

Circular /

Title from cover.

Circular /

None published, 1891-1914.

Circular bulletin.

Mode of access: Internet.

Circular.

Separately cataloged in LC after Mar. 1958.

Circular - Pennsylvania State University, College of Agriculture, Extension Service.

Mode of access: Internet.

Circular of information.

Title from caption.

Circular of information /

Title from caption.

Circular /

Title from caption.

Circular.

Description based on: No. 67, published in 1934; title from cover.

Extension circular.

Mode of access: Internet.

Extension circular.

Mode of access: Internet.

Circular.

Mode of access: Internet.

Circular.

Title from caption.