This pattern is from the book Blueprint Crochet which is available in print and eBook form. It is also available as a single pattern download from the Interweave Store.

Yarn: DK-weight (#3 Light)
Shown: Bamboo by South West Trading Company
(100% bamboo; 250 yd 229 m/ 3.5 oz 100 g): magenta #402, 4 (5, 5, 6) hanks.
Hook: G/6 (4.25mm) and H/8 (5.0mm) or hooks needed to obtain gauge.
Notions: Tapestry needle; 6 (6, 8, 8) 5/16” (8 mm) pearl buttons; small needle and matching thread.
Gauge: 5½ x 5½“ (14 x 14 cm) =Granny Motif with smaller hook
6 x 6” (15 x 15 cm) = Granny Motif with larger hook
Size: Small, (Medium, Large, X-Large) fits 33 (36, 44, 48)”, (84 91.5, 112, 122 cm) bust circumference, and 11 (12, 16½, 18)“ (28 30.5, 42, 45.5 cm) upper arm circumference.
Top shown in a Small.